Top things to do to improve MPG & engine life?

[Lib88888]

Apart from the obvious service,

Any sensor replacements? Anything that a 20year old Jeep would benefit from?

Thanks guys

 

[lfhoward]

Oil changes every 3000 miles with Mobil-1 synthetic. Spark plugs every 30k miles with copper NGK’s. But those are probably in the obvious category.

I also have a Scangauge II that tells me my instantaneous and average mpg, and it helps me modify my driving to be more efficient. Adjusting the nut behind the wheel made a big difference.

 

[Pitneykk]

Oil changes every 3000 miles with Mobil-1 synthetic. Spark plugs every 30k miles with copper NGK’s. But those are probably in the obvious category.

I also have a Scangauge II that tells me my instantaneous and average mpg, and it helps me modify my driving to be more efficient. Adjusting the nut behind the wheel made a big difference.

The nut behind the wheel adjustment was the trick.

 

[mercdudecbr600]

Synthetic gear oil in front/rear diffs and sticking with relatively light weight 16” at tires

 

[u2slow]

Been putting a lot less miles on since covid.

Otherwise, it's regimented oil changes, and clean/replace that air filter.

 

[Lib88888]

Thank you guys, this is my second Cherokee now but it’s my forever car that I’m keeping.