91 civic gas mileage
 

You commute 168 miles per day?

I have a 1991 Civic DX and I get 40mpg CITY! I use this:
http://www.rxp-gas-kicker.com




From: Richard Santmier via CarKB.com - view profile
Date: Fri, Apr 15 2005 9:35 am
Email: "Richard Santmier via CarKB.com" <f...@nospam.CarKB.com>
Groups: alt.autos.honda
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I figure anyone who can answer this is hard core Honda.

I have a 91 Civic LX, 1.5 liter, manual 5 speed, AC, power steering,
windows and door locks. It has an erratic gas mileage and idle
problem.
Anytime it sits in the heat after being run, when it is first turned
on,
engine already warm, will idle at 2k until it runs a distance. It
seems
like something overheats and then cools down once air starts moving.
Strictly a warm weather problem. Also, after idling in the heat for a
while the AC just cuts off AND the cooling fans quit too. The only
thing I
can do in traffic is turn the heater on wide open until the fans decide
to
come on.


Next, maybe related, the gas mileage is all over the place. I commute
168
miles a day, same traffic patterns, same roads. Yet on Monday it may
be 37
mpg and the next 30 mpg and on Wednesday back up to 35. I?d say the
average is around 34.


Background: Car owned since new, 309k miles, replaced alternator,
distributor, primary fuel injector and EACV. The O2 sensor replaced
several times and the ECU was swapped just to see if it makes a
difference,
no it didn?t. If you need further details or history please let me
know.