NEED HELP Poor Gas Mileage -

[tippy]

Hi all,

I'm getting 5.1 KM/L - I think this is poor but not 100% sure though - would be nice to know what the best mileage one can get from this 2002 Envoy Vortec 4.2L I6 engine - and / or perhaps what ways one can improve the gas mileage (gas is getting way too expensive nowadays) Thanks

 

[budwich]

If you are doing a lot of stop and go city driving, you are going to be hard pressed to get any better ... maybe as much as 6 ... my experience on suburb driving.

Certainly, if your driving is more highway, then that number is bad. Place to start would be to look at fuel trims during idle and constant throttle to see if things look ok... then go from there depending on what's happening.