Randolph

VTEC wrote:

> hey again guys, thanks for all your responses!! Turns out my head
> gasket was leaking co-incidently at the same time id put the injector
> cleaner in! Found water in where the sparkplugs were so only 3
> cylinders were firing!

Happy to hear you found the problem.

> The reason i said the fuel was not all that great as ive been told the
> octane content in the fuels here both premium and unleaded were lower
> than places like japan. Seeing as i have an imported car i thought id
> run it with a higher shot of octane, it did make a difference though!


That might be a misunderstanding. There are different ways of measuring
the octane rating of gas, there is the Motor Octane Number and the
Research Octane Number, the difference being how the measurements are
done. In the US the published number is called PON, or Pump Octane
Number and this is the average of RON and MON. In Europe and many other
regions the RON only numbers are published. For a given gas blend, the
RON number is higher than the MON number, so a European gas sold as 92
octane will be a lower octane gas than what is sold as 92 octane in the
US. In the US, regular is 87 octane, intermediate is 89 octane and
premium is 93 (sometimes 92) octane. You'll probably find that the
octane rating for the different categories are higher in Australia
(assuming they use RON like in Europe). Thus a US Premium is probably
equivalent to an Australian Premium even though the posted numbers are
different.

Randolph

VTEC wrote:

> hey again guys, thanks for all your responses!! Turns out my head
> gasket was leaking co-incidently at the same time id put the injector
> cleaner in! Found water in where the sparkplugs were so only 3
> cylinders were firing!

Happy to hear you found the problem.

> The reason i said the fuel was not all that great as ive been told the
> octane content in the fuels here both premium and unleaded were lower
> than places like japan. Seeing as i have an imported car i thought id
> run it with a higher shot of octane, it did make a difference though!


That might be a misunderstanding. There are different ways of measuring
the octane rating of gas, there is the Motor Octane Number and the
Research Octane Number, the difference being how the measurements are
done. In the US the published number is called PON, or Pump Octane
Number and this is the average of RON and MON. In Europe and many other
regions the RON only numbers are published. For a given gas blend, the
RON number is higher than the MON number, so a European gas sold as 92
octane will be a lower octane gas than what is sold as 92 octane in the
US. In the US, regular is 87 octane, intermediate is 89 octane and
premium is 93 (sometimes 92) octane. You'll probably find that the
octane rating for the different categories are higher in Australia
(assuming they use RON like in Europe). Thus a US Premium is probably
equivalent to an Australian Premium even though the posted numbers are
different.

Michael Pardee

"VTEC" <DoNotEmail@AutoForumz.com> wrote in message
news:1_530739_f17d58db16abbd401adc56c196b4adbb@aut oforumz.com...

> Oh well, time for a new head gasket haha, thanks guys!

Being able to laugh when facing a head gasket replacement makes you a
stouter man than I am, VTEC! Sorry to hear about the tough break, glad it is
on the mending path.

Mike

Michael Pardee

"VTEC" <DoNotEmail@AutoForumz.com> wrote in message
news:1_530739_f17d58db16abbd401adc56c196b4adbb@aut oforumz.com...

> Oh well, time for a new head gasket haha, thanks guys!

Being able to laugh when facing a head gasket replacement makes you a
stouter man than I am, VTEC! Sorry to hear about the tough break, glad it is
on the mending path.

Mike