Helping JimT out with an inframe ...

[Rawze]

(10-12-2020 )JimT Wrote:  ... Fuel mileage is down from a long term 7.47 mpg average pre-inframe to about a 7.36 post-inframe. ... tank to tank it seems a bit lower than it should be.
...

When i did my own inframe, it took 80,000 miles before my fuel mileage started coming back up where it was before. A tight, freshly inframed engine has lower fuel mileage until it gets broke in good. My own truck lost a solid 0.8 mpg during that period. New drive tires vs. worn out ones will drop the fuel mileage even more till they get broke in too. Every time i have replaced mine, I lost about 0.7 mpg on the tires till they got broke in again.