NoSpleeny

I think somebody has a lot of time on their hands THanks for the info!

I'm gonna print that out and leave it in my car!

T-Shirt Ninja

LOL I like the Back to Top in the post

I'm getting like 300kms per tank too, Is octane a factor in fuel consumption? Cause I always get 91-94 octane, but I still get horrible consumption all year round, even the one time I did all highway kms (360kms).

I've swapped plugs, changed the air filter etc... Think I should swap the distributer and spark plug wires? Think that'll help? Cause I don't know if theyve ever been changed, what do the original wires say on em? TIA

Greg

bbarbulo

iTrader: (2)

Poor fuel economy is not a sign of an ignition related problem grego9198. Changing those parts *may* be a good idea, but will not reduce fuel consumption. Yes, if your engine is close to stock, and your timing is set properly, you are wasting your money on premium gas. It is less volatile and thus harder to light, which means no detonation, but also slower burn rates. Stick with 87 like Honda says unless your car is highly modified to the point of detonation. Your problem could be anything from the O2 sensor to a loose vaccuum line to a faulty press regulator. That is in fact if it is a problem at all...calculate your fuel mileage for 3 weeks, and then compare to EPA estimates of an as-new Civic in 1994. If you are more than 50 kms off the mark, but you don't drive like an ***, then your car likely has fueling issues and will require diagnosis.

AzimuthX

So my dad is wasting $ on Ultra 94 @ Sunoco for filling up the 2002 CR-V, and before, the 92 Camry?

I knew that already, but can't convince him.

bbarbulo

iTrader: (2)

Whatever it says on the manual....if it's tuned for 87 octane, use that. Higher octane prevents detonation cause it doesn't burn as easily, but when it burns, it burns at a higher caloric value. If you wanna convince him, search the web, I've seen tones of articles on this issue. Usually only turbo and high-compression cars require ultra gas. Like a WRX, VR6 VW, Prelude, GS-R, etc. Not likely that your CR-V uses it. Also check howstuffworks.com

AzimuthX

Its kind of hard changing his mind on Ultra 94, anything else maybe but not online sources regarding this. Oh well not my prob . It does say 86 or higher...