Quote:
Originally Posted by Takimo
So i went to the garage yesterday, and my mecanic told me i have a oil leak on my valve cover gasket, but i forgot to ask him if this can be related to my high gas consumption, i remember when i got the car 5 year ago it was around 17l/100km... now its around 22l/100km (i do almost city, no heavy foot), i just replace my air filter a week ago, my spark plug was change 5 year ago(now maybe they are sunk with oil and it doesnt help).... no rough idle, no giveaway sign of missfire, no code triggered... what can cause the extreme high fuel consumption ?
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You seem to have had a problem for a while; I have a 2001 running KO2 tires (not good for fuel economy) and my commute is 200km of gravel road. I drive somewhat aggressive, and I average better than 14l/100k
Seems your O2 sensors may be off enough to run rich, but not enough to trigger engine light. If that is case, then your cat-converters might be getting plugged up. Had that happen on a Lexus RX300 after a year of running just a bit rich.
Bon chance,
K