I recently changed the radiator, transmission fluid and filter and transfer case fluid. Before the change I was averaging about 220-240 miles a tank in town, and 260-280 on the highway. Now that I have done the changes I listed above, I'm averaging 230-250 in town and 280-300 on the highway.

That is like a 2MPG increase from before the work. To me this sounds a little bit ridiculous. I never would have thought that I would see an improvement, let alone an improvement like this.

What you guys think or have you experienced something similar?

 

Try figuring out you actual MPG rather than going by the tank. Though, that may be difficult being as it appears you didn't do that prior to changing fluids.

 

I actually did that a good bit...poor college kid was worried about MPG haha. City was anywhere from 14-16...highway was 15-17. I did the math from the gas book I keep after the work and got this: city: 15-17 in town and 18-20 on the highway

 

I would guess the fluids were low before

 

thats pretty good MPG. I'm averaging 14mpg in a 50% town and 50% highway commute to work.