[RainesMichael]

Ok. I just put new plugs in my jeep and it went from I think it was 12.5 mpg on the dash down to 8 mpg.. Lol...what gives? HELP!!

 

[jmr40]

Reset and drive it for a tank before you panic

 

[JTPhoto JK]

What plugs did you instal?

 

[RainesMichael]

What plugs did you instal?

Bosh dub. plat

 

[RainesMichael]

Reset and drive it for a tank before you panic

Thanks ...reset bat. now showing 18.5 mpg... Nice!! That's a big jump, that normal? 3.8

 

[Tweak]

Dont trust the dash gauge, after only a few short miles it's not going to tell you anything correct. Its very likely that your actual mileage didnt change at all.

The best way to know your mileage is to reset the trip counter every fillup. Divide miles driven by the amount of gallons you put in.