2001 Prelude has always burned oil--dealer says new engine needed!!??
Hi, I've had my 2001 Prelude since new. Manual, special edition. It
has burned oil since about a year or two into ownership. I brought it in to the dealer a few times and was always told it was 'normal' for preludes to burn a bit of oil. Last fall, the car had trouble starting. This spring it just wouldn't. Brought it in and dealer said spark plugs were fowled badly due to oil and engine codes showed a number of misfires, etc. Dealer said I need a new lower half to the engine!! WTF? Is this typical? Is there any way around this? I told the guy to change the spark plugs and left. Engine light came on a day later. *sigh* Do I have any options? Is this car only going to last me another month? Thanks, -Rob |
Re: 2001 Prelude has always burned oil--dealer says new engine needed!!??
danbobterror@gmail.com wrote:
> Hi, I've had my 2001 Prelude since new. Manual, special edition. It > has burned oil since about a year or two into ownership. I brought it > in to the dealer a few times and was always told it was 'normal' for > preludes to burn a bit of oil. Last fall, the car had trouble > starting. This spring it just wouldn't. Brought it in and dealer said > spark plugs were fowled badly due to oil and engine codes showed a > number of misfires, etc. Dealer said I need a new lower half to the > engine!! WTF? Is this typical? Is there any way around this? I told > the guy to change the spark plugs and left. Engine light came on a day > later. *sigh* Do I have any options? Is this car only going to last me > another month? Thanks, > > -Rob What weight oil are you using? I found that my Civic would burn oil after 60k miles on 5W-30, but not with 10W-30. If you are using 0W- or 5W-, try going up to 10W-. It shouldn't make a difference, yet it does. |
Re: 2001 Prelude has always burned oil--dealer says new engine needed!!??
Leftie <No@Thanks.net> wrote in news:%1nJl.91412$GU6.21230@newsfe09.iad:
> danbobterror@gmail.com wrote: >> Hi, I've had my 2001 Prelude since new. Manual, special edition. It >> has burned oil since about a year or two into ownership. I brought it >> in to the dealer a few times and was always told it was 'normal' for >> preludes to burn a bit of oil. Last fall, the car had trouble >> starting. This spring it just wouldn't. Brought it in and dealer said >> spark plugs were fowled badly due to oil and engine codes showed a >> number of misfires, etc. Dealer said I need a new lower half to the >> engine!! WTF? Is this typical? Is there any way around this? I told >> the guy to change the spark plugs and left. Engine light came on a day >> later. *sigh* Do I have any options? Is this car only going to last me >> another month? Thanks, >> >> -Rob > > > What weight oil are you using? I found that my Civic would burn oil > after 60k miles Then you have some kind of serious problem. No modern engine should get anything less than 8,000 miles per quart even at 100,000K. > on 5W-30, but not with 10W-30. After extensive testing of my own, I have found that there is zero difference in oil consumption between 5W-30, 10W-30 and 10W-40. > If you are using 0W- or > 5W-, try going up to 10W-. It shouldn't make a difference, yet it does. I'd like to know your methodology. -- Tegger The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: 2001 Prelude has always burned oil--dealer says new engine needed!!??
Tegger wrote: > Leftie <No@Thanks.net> wrote in news:%1nJl.91412$GU6.21230@newsfe09.iad: > > >>danbobterror@gmail.com wrote: >> >>>Hi, I've had my 2001 Prelude since new. Manual, special edition. It >>>has burned oil since about a year or two into ownership. I brought it >>>in to the dealer a few times and was always told it was 'normal' for >>>preludes to burn a bit of oil. Last fall, the car had trouble >>>starting. This spring it just wouldn't. Brought it in and dealer said >>>spark plugs were fowled badly due to oil and engine codes showed a >>>number of misfires, etc. Dealer said I need a new lower half to the >>>engine!! WTF? Is this typical? Is there any way around this? I told >>>the guy to change the spark plugs and left. Engine light came on a day >>>later. *sigh* Do I have any options? Is this car only going to last me >>>another month? Thanks, >>> >>>-Rob >> >> >> What weight oil are you using? I found that my Civic would burn oil >>after 60k miles > > > > > Then you have some kind of serious problem. No modern engine should get > anything less than 8,000 miles per quart even at 100,000K. > > > > > >>on 5W-30, but not with 10W-30. > > > > > After extensive testing of my own, I have found that there is zero > difference in oil consumption between 5W-30, 10W-30 and 10W-40. > > > > >> If you are using 0W- or >>5W-, try going up to 10W-. It shouldn't make a difference, yet it does. > > > > > I'd like to know your methodology. > I would think that a compression test is in order. If the car has always used oil, methinks ring problem or ventilation right from the factory that never got corrected. JT |
Re: 2001 Prelude has always burned oil--dealer says new engine needed!!??
Tegger wrote:
> Leftie <No@Thanks.net> wrote in news:%1nJl.91412$GU6.21230@newsfe09.iad: > >> danbobterror@gmail.com wrote: >>> Hi, I've had my 2001 Prelude since new. Manual, special edition. It >>> has burned oil since about a year or two into ownership. I brought it >>> in to the dealer a few times and was always told it was 'normal' for >>> preludes to burn a bit of oil. Last fall, the car had trouble >>> starting. This spring it just wouldn't. Brought it in and dealer said >>> spark plugs were fowled badly due to oil and engine codes showed a >>> number of misfires, etc. Dealer said I need a new lower half to the >>> engine!! WTF? Is this typical? Is there any way around this? I told >>> the guy to change the spark plugs and left. Engine light came on a day >>> later. *sigh* Do I have any options? Is this car only going to last me >>> another month? Thanks, >>> >>> -Rob >> >> What weight oil are you using? I found that my Civic would burn oil >> after 60k miles > > > > Then you have some kind of serious problem. No modern engine should get > anything less than 8,000 miles per quart even at 100,000K. > > > > >> on 5W-30, but not with 10W-30. > > > > After extensive testing of my own, I have found that there is zero > difference in oil consumption between 5W-30, 10W-30 and 10W-40. > > > >> If you are using 0W- or >> 5W-, try going up to 10W-. It shouldn't make a difference, yet it does. > > > > I'd like to know your methodology. > > > The Civic was run on Mobil One 15W-50 and 5W-30 full synthetic after the break-in period. It used virtually no oil between changes. The valves were always adjusted on schedule. After it hit about 70k miles I noticed rough running; it was diagnosed as oil-fouled plugs and O2 sensor. It was also down most of a quart of oil for the first time ever. They replaced the plugs, I replaced the sensor, and I stopped using the 5W- synthetic, using either the 15W-50 or a different brand of 10W-30 full synthetic. The car stopped burning oil and ten years later just suffered only a little leakdown if it sat for more than a few days. It was still fine when I sold it after 23 years and 146k miles. When I tried the same thing with an AMC six that was using oil, the oil consumption also stopped. To sum up, we've had opposite experiences with changing viscosities. I suspect that yours was due to the engines not using excessive oil in the first place - correct me if I'm wrong on that. It certainly won't hurt for this guy to switch to 10W-30, and it may help. I hope he tries it and reports back. |
Re: 2001 Prelude has always burned oil--dealer says new engine needed!!??
danbobterror@gmail.com wrote:
> Hi, I've had my 2001 Prelude since new. Manual, special edition. It > has burned oil since about a year or two into ownership. I brought it > in to the dealer a few times and was always told it was 'normal' for > preludes to burn a bit of oil. Last fall, the car had trouble > starting. This spring it just wouldn't. Brought it in and dealer said > spark plugs were fowled badly due to oil and engine codes showed a > number of misfires, etc. Dealer said I need a new lower half to the > engine!! WTF? Is this typical? Is there any way around this? I told > the guy to change the spark plugs and left. Engine light came on a day > later. *sigh* Do I have any options? Is this car only going to last me > another month? Thanks, > > -Rob Have you checked the PCV valve and associated plumbing? |
Re: 2001 Prelude has always burned oil--dealer says new engine needed!!??
Leftie <No@Thanks.net> wrote in
news:aTuJl.108985$e_5.69932@newsfe03.iad: > Tegger wrote: >> >> >> >> I'd like to know your methodology. >> >> >> > > The Civic was run on Mobil One 15W-50 15W-50 was not good choice. You surely suffered at least oil pump damage and bearing damage if not ring damage as well using that stuff. > and 5W-30 full synthetic > after > the break-in period. It used virtually no oil between changes. The > valves were always adjusted on schedule. After it hit about 70k miles > I noticed rough running; it was diagnosed as oil-fouled plugs and O2 > sensor. It was also down most of a quart of oil for the first time > ever. They replaced the plugs, I replaced the sensor, and I stopped > using the 5W- synthetic, using either the 15W-50 Why on earth would you use that viscosity? Your Honda's oil pump was not designed for it, and your Owner's Manual certainly does not call for it. No wonder you're burning oil; you broke your engine. > or a different brand > of 10W-30 full synthetic. The car stopped burning oil and ten years > later just suffered only a little leakdown if it sat for more than a > few days. It was still fine when I sold it after 23 years and 146k > miles. When I tried the same thing with an AMC six that was using oil, > the oil consumption also stopped. That was an older design of engine. Older-design engines often benefited from oil of higher viscosities once the miles piled up. > > To sum up, we've had opposite experiences with changing > viscosities. > I suspect that yours was due to the engines not using excessive oil in > the first place - correct me if I'm wrong on that. It certainly won't > hurt for this guy to switch to 10W-30, and it may help. 10W-30 won't hurt. Won't help either. > I hope he tries it and reports back. > He won't. -- Tegger The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: 2001 Prelude has always burned oil--dealer says new engine needed!!??
Tegger wrote:
> Leftie <No@Thanks.net> wrote in > news:aTuJl.108985$e_5.69932@newsfe03.iad: > >> Tegger wrote: > >>> >>> >>> I'd like to know your methodology. >>> >>> >>> >> The Civic was run on Mobil One 15W-50 > > > > > 15W-50 was not good choice. You surely suffered at least oil pump damage > and bearing damage if not ring damage as well using that stuff. > > > >> and 5W-30 full synthetic >> after >> the break-in period. It used virtually no oil between changes. The >> valves were always adjusted on schedule. After it hit about 70k miles >> I noticed rough running; it was diagnosed as oil-fouled plugs and O2 >> sensor. It was also down most of a quart of oil for the first time >> ever. They replaced the plugs, I replaced the sensor, and I stopped >> using the 5W- synthetic, using either the 15W-50 > > > > Why on earth would you use that viscosity? Your Honda's oil pump was not > designed for it, and your Owner's Manual certainly does not call for it. > > No wonder you're burning oil; you broke your engine. > > > >> or a different brand >> of 10W-30 full synthetic. The car stopped burning oil and ten years >> later just suffered only a little leakdown if it sat for more than a >> few days. It was still fine when I sold it after 23 years and 146k >> miles. When I tried the same thing with an AMC six that was using oil, >> the oil consumption also stopped. > > > > That was an older design of engine. Older-design engines often benefited > from oil of higher viscosities once the miles piled up. > > > >> To sum up, we've had opposite experiences with changing >> viscosities. >> I suspect that yours was due to the engines not using excessive oil in >> the first place - correct me if I'm wrong on that. It certainly won't >> hurt for this guy to switch to 10W-30, and it may help. > > > > 10W-30 won't hurt. Won't help either. > > > >> I hope he tries it and reports back. >> > > > He won't. > > Did you even read what I wrote? The engine that I "broke" stopped burning oil and was still running strong on the original internals over a decade after this incident. I hope that you do a better job of reading work-related documents. |
Re: 2001 Prelude has always burned oil--dealer says new engine needed!!??
Leftie <No@Thanks.net> wrote in news:qiIJl.51827$gC1.50740@newsfe19.iad:
>> Leftie <No@Thanks.net> wrote in >> news:aTuJl.108985$e_5.69932@newsfe03.iad: >> >> >> >>> and 5W-30 full synthetic after >>> the break-in period. It used virtually no oil between changes. The >>> valves were always adjusted on schedule. After it hit about 70k >>> miles I noticed rough running; it was diagnosed as oil-fouled plugs >>> and O2 sensor. It was also down most of a quart of oil for the first >>> time ever. They replaced the plugs, I replaced the sensor, and I >>> stopped using the 5W- synthetic, using either the 15W-50 >>> or a different brand of 10W-30 full synthetic. The car stopped >>> burning oil and ten years later just suffered only a little leakdown >>> if it sat for more than a few days. It was still fine when I sold it >>> after 23 years and 146k miles. >> >> > > Did you even read what I wrote? Of course. > The engine that I "broke" stopped > burning oil and was still running strong on the original internals > over a decade after this incident. I wasn't there of course, so I have to accept your reporting as accurate, but I stand by my guess as to internal engine damage. Nobody should EVER do what you did with your car. 15W-50 is a /very/ bad choice for any modern engine. -- Tegger The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: 2001 Prelude has always burned oil--dealer says new engine needed!!??
Tegger wrote:
> 15W-50 was not good choice. You surely suffered at least oil pump damage > and bearing damage if not ring damage as well using that stuff. Why on earth do you say that? What supposed mechanism will cause oil pump damage? I can almost believe the rings suffering due to decreased oil flow, but have a hard time believing that a 50wt oil (a comparatively wimpy 50wt at that.) will cause such severe starvation as to 'break' the them. M1's 15w-50 has tons of zinc, moly, and boron based anti-wear additives. Even IF oil delivery to the rings was reduced (by how much, 20~30%?) I don't think it could kill the engine in such a short time. I can't see any mechanism by which the plain crank bearings would be damaged. Europeans and those crazy Aussies routinely run xW-40 and xW-50wt oils in the very same engines that are spec'd for 10W30 in North America. Consider what happens every time you start your car on a cold morning. Until the engine is up to operating temp, the cold oil circulating and lubricating is vastly thicker than any hot 50wt. If thick-ish oil caused bearing damage, we'd all destroy our cars in short order. IMO. |
Re: 2001 Prelude has always burned oil--dealer says new engine needed!!??
danbobterror@gmail.com wrote:
> Hi, I've had my 2001 Prelude since new. Manual, special edition. It > has burned oil since about a year or two into ownership. I brought it > in to the dealer a few times and was always told it was 'normal' for > preludes to burn a bit of oil. Last fall, the car had trouble > starting. This spring it just wouldn't. Brought it in and dealer said > spark plugs were fowled badly due to oil and engine codes showed a > number of misfires, etc. Dealer said I need a new lower half to the > engine!! WTF? Is this typical? Is there any way around this? I told > the guy to change the spark plugs and left. Engine light came on a day > later. *sigh* Do I have any options? Is this car only going to last me > another month? Thanks, > > -Rob Hi, Ever tried a different dealership or independent garage who has a good reputation? My OLD('98) CRV has ~279K Km so far on the clock, I change oil every 8K Km with 5W-30 Castrol brand always. Between oil change I don't need to top up oil. This cas still drives like new. I must say something is definitely wrong with your car. |
Re: 2001 Prelude has always burned oil--dealer says new engine needed!!??
Greg Campbell wrote:
> Tegger wrote: > >> 15W-50 was not good choice. You surely suffered at least oil pump >> damage and bearing damage if not ring damage as well using that stuff. > > Why on earth do you say that? What supposed mechanism will cause oil > pump damage? I can almost believe the rings suffering due to decreased > oil flow, but have a hard time believing that a 50wt oil (a > comparatively wimpy 50wt at that.) will cause such severe starvation as > to 'break' the them. M1's 15w-50 has tons of zinc, moly, and boron > based anti-wear additives. Even IF oil delivery to the rings was > reduced (by how much, 20~30%?) I don't think it could kill the engine in > such a short time. I can't see any mechanism by which the plain crank > bearings would be damaged. > > Europeans and those crazy Aussies routinely run xW-40 and xW-50wt oils > in the very same engines that are spec'd for 10W30 in North America. > > Consider what happens every time you start your car on a cold morning. > Until the engine is up to operating temp, the cold oil circulating and > lubricating is vastly thicker than any hot 50wt. If thick-ish oil > caused bearing damage, we'd all destroy our cars in short order. > > IMO. > Tegger is normally a pretty reliable source of info, but apparently I pushed some sort of "button" with this. He snipped the parts of my post that directly contradict what he concluded, and since he hasn't said otherwise, I'm going to assume that his "research" on the effects of viscosity changes was done on cars that weren't burning oil to start with. The final irony is that after saying that viscosity doesn't have any effect on oil consumption, he accused me of "breaking" my engine just by using 15W-50! I guess he thinks that Castrol GTX 20W-50 was sent by Satan to prepare the earth for the Apocalypse. ;-) Just to be clear, it's been my experience that older engines that are using oil will often use less or even none if you switch them from 0W or 5W lower weight oil to 10W-30. I make no other claim. |
Re: 2001 Prelude has always burned oil--dealer says new engine needed!!??
Leftie <No@Thanks.net> wrote in
news:aIPJl.119192$%k2.115591@newsfe07.iad: > Greg Campbell wrote: >> Tegger wrote: >> >>> 15W-50 was not good choice. You surely suffered at least oil pump >>> damage and bearing damage if not ring damage as well using that >>> stuff. >> >> Why on earth do you say that? What supposed mechanism will cause oil >> pump damage? I can almost believe the rings suffering due to >> decreased oil flow, but have a hard time believing that a 50wt oil (a >> comparatively wimpy 50wt at that.) will cause such severe starvation >> as to 'break' the them. M1's 15w-50 has tons of zinc, moly, and >> boron based anti-wear additives. Even IF oil delivery to the rings >> was reduced (by how much, 20~30%?) I don't think it could kill the >> engine in such a short time. I can't see any mechanism by which the >> plain crank bearings would be damaged. >> >> Europeans and those crazy Aussies routinely run xW-40 and xW-50wt >> oils in the very same engines that are spec'd for 10W30 in North >> America. >> >> Consider what happens every time you start your car on a cold >> morning. Until the engine is up to operating temp, the cold oil >> circulating and lubricating is vastly thicker than any hot 50wt. If >> thick-ish oil caused bearing damage, we'd all destroy our cars in >> short order. >> >> IMO. >> > > Tegger is normally a pretty reliable source of info, but > apparently > I pushed some sort of "button" with this. He snipped the parts of my > post that directly contradict what he concluded, Au contraire. I snipped everything BUT the apparently contradictory part. And I even /joined together/ two parts of the contradictory information that were originally spaced apart by other text, just so people could see what I was replying to. Go read my last reply again. > and since he hasn't > said otherwise, I'm going to assume that his "research" on the effects > of viscosity changes was done on cars that weren't burning oil to > start with. True. I've had absolutely no success getting oil-burning cars to quit burning oil. Oil going /elsewhere/ is another story, but oil getting sucked /past the rings/ (which is what "burning" usually is) is pretty much a done deal and time for a ring job. It's highly unlikely and hard to believe that your rings somehow got "fixed" because you fed the engine different oil. It's easier to believe that a leak of some kind got fixed as a byproduct of some other servicing. You did imply later on that the car did have a "leakdown" of oil that persisted until you sold the car. > The final irony is that after saying that viscosity > doesn't have any effect on oil consumption, No, I said *I* was unable to find any difference at all in consumption between the grades I tried. Not the same thing. > he accused me of > "breaking" my engine just by using 15W-50! I guess he thinks that > Castrol GTX 20W-50 was sent by Satan to prepare the earth for the > Apocalypse. ;-) To address Greg Campbell, I made an (unsuccessful) attempt at finding any European Honda Owner's Manuals online in order to determine exactly what Europeans are supposed to use in their engines. I did, however, locate such information at www.castrol.co.uk . Prior to model-year 2000, 15W-50 is the highest "alternate" viscosity grade Castrol specifies (meant for /very/ hot climates, ~100F), but their "recommended" viscosity for all pre-'00 cars is 10W-40. AFTER 2000, Castrol no longer specifies any alternate viscosity higher than 10W-40, and their "recommended" viscosity goes down to 0W-30. A higher viscosity is harder for the oil pump to pick up, and harder to squeeze through the filter. This is especially true when cold. This means it takes "just a bit longer" for pressure to build in the bearings, and "just a bit longer" for the rings and camshafts to receive fresh oil. All that "just a bit longer" means just that much more wear on each cold start, and just that much shorter life for your engine's internals. No "apocalypse", just shortened life. > > > Just to be clear, it's been my experience that older engines that > are using oil will often use less or even none if you switch them from > 0W or 5W lower weight oil to 10W-30. I make no other claim. And I make no other claim than that it is a bad idea to do other than what Honda says to do for your engine. You trusted them with +$20K of your money, evidently because you trusted them to give you a finely-designed and built machine, but you won't trust them to know what's best for that fine machine. -- Tegger The Unofficial Honda/Acura FAQ www.tegger.com/hondafaq/ |
Re: 2001 Prelude has always burned oil--dealer says new engine needed!!??
<danbobterror@gmail.com> wrote in message news:57cb86c0-7085-4996-8b72-6375fcde22c8@c18g2000prh.googlegroups.com... > Hi, I've had my 2001 Prelude since new. Manual, special edition. It > has burned oil since about a year or two into ownership. I brought it > in to the dealer a few times and was always told it was 'normal' for > preludes to burn a bit of oil. Last fall, the car had trouble > starting. This spring it just wouldn't. Brought it in and dealer said > spark plugs were fowled badly due to oil and engine codes showed a > number of misfires, etc. Dealer said I need a new lower half to the > engine!! WTF? Is this typical? Is there any way around this? I told > the guy to change the spark plugs and left. Engine light came on a day > later. *sigh* Do I have any options? Is this car only going to last me > another month? Thanks, > > -Rob I had a 2001 myself and it used oil too -- which I was assured was normal for a Prelude, particularly if you ran it hard into the VTEC. I used routinely a quart every 2500-3000 miles and used Mobil 1 synthetic. I traded the car at 67k miles for an 06 Accord coupe I4 --- and it does not use oil. My dealer and other Lude owners told me that the design of the Prelude engine was such that it was an oil user. I think you will find out more about Preludes on an enthusiasts site. There used to be one I referred to all of the time since most of the group here are not familiar with Preludes. |
Re: 2001 Prelude has always burned oil--dealer says new engine needed!!??
Tegger wrote:
> To address Greg, I made an (unsuccessful) attempt at finding > any European Honda Owner's Manuals online in order to determine exactly > what Europeans are supposed to use in their engines. I did, however, > locate such information at www.castrol.co.uk . > Prior to model-year 2000, 15W-50 is the highest "alternate" viscosity > grade Castrol specifies (meant for /very/ hot climates, ~100F), but > their "recommended" viscosity for all pre-'00 cars is 10W-40. > AFTER 2000, Castrol no longer specifies any alternate viscosity higher > than 10W-40, and their "recommended" viscosity goes down to 0W-30. As near as I can tell, the Australian tendency toward heavy oils is more cultural than technical. Pick a lube manufacturer and then compare their Au product lines vs. those sold in the US. Compare Castrol's lineup. Au http://www.castrol.com/castrol/subse...tentId=6008505 Only one Xw-30, everything else is 40+, up to 10W-60(!) vs. US http://www.castrol.com/castrol/subse...tentId=6005246 With several Xw-20 offerings and only one (may have missed more?) 50w. Mobil's Au oils are also biased at least 10w higher. Haven't checked any other companies. Did you ever find any actual factory oil recommendations for US vs. Au and elsewhere? Please post! I do know that several/most auto manufacturers have retroactively re-specified many of their recent models for Xw-20 use in the US (but not elsewhere.) That's going in the opposite direction, but does imply that a wide range of viscosities will work in most engines. > A higher viscosity is harder for the oil pump to pick up, and harder to > squeeze through the filter. This is especially true when cold. This > means it takes "just a bit longer" for pressure to build in the > bearings, and "just a bit longer" for the rings and camshafts to receive > fresh oil. > All that "just a bit longer" means just that much more wear on each cold > start, and just that much shorter life for your engine's internals. No > "apocalypse", just shortened life. No argument there! Without looking at it's pour point, I suspect running that 15w-50 during a North Dakota winter might not be the smartest. >> Just to be clear, it's been my experience that older engines that >> are using oil will often use less or even none if you switch them from >> 0W or 5W lower weight oil to 10W-30. I make no other claim. This, I'm curious about. At operating temp, there is not necessarily any difference between a 0w-30 and a 10w-30. The 10W-X oils are, on average, a hair thicker, but that's not guaranteed. If operating visc. is similar, oil blow-by, etc. should also be similar. (?) > And I make no other claim than that it is a bad idea to do other than > what Honda says to do for your engine. > You trusted them with +$20K of your money, evidently because you trusted > them to give you a finely-designed and built machine, but you won't > trust them to know what's best for that fine machine. Not to take great issue, but IMO a number of factory specs are influenced by marketing and perceived customer demands. I know for a fact that Momma Honda's tire pressure suggestion for my car is out to lunch by about 5 PSI. Customers of high end Accords want ride quality, so give them what they want and lower the suggested PSI a few clicks. I suspect oil specs are similar. If the average Aussie or German is used to Xw-40 oils (and doesn't flinch at 25w-50!), spec something a little higher. Any Europeans or Australians out there? Please post your owner's manual recommendations! FWIW, my 92 Accord, built in Ohio, presumably for a North American market, specifies 5w or 10W-30 for ALL temperatures. |
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