Lincoln/Mercury Repair: Ignition wires/fuel usage, isuzu rodeo, 1995 isuzu rodeo

Question
Hi:

I have a 1995 Isuzu Rodeo. (there are not Isuzu experts on the site, but this is a general question) It is a V6. For some reason it is getting 10 miles per gallon. This seems a bit low. I've been thinking about changing the spark plugs and ignition wires.  The factory wires are 7mm. I've been considering getting performance wires, (either 8mm or 9mm) Should this make a difference in milage & performace, and is there a point when the wires are too thick? IE< would 10-12 mm be toomuch Why or why not?

Thanks  Eric

Answer
Hi Eric,

My Navigator gets 11.6 so yeah, you need to look into this. Wires will make no difference. The factory actually spends thousands on research to figure the right wire for your truck. I am concerned about your milage though. Is there a check engine light on? I think you are running way rich, so we need to figure this out.