I have a few questions on these engines....and would much appreciate any adivce from any others with the same type truck. mine is a '97 2.5l 5sp. Here are the questions...

160k miles...what oil would you suggest?-currently runnin 10w-30....
What gas mileage do you get? I seem to be lucky to get 20mpg....doesnt seem right...

What size tires do you have? i recently put 4 new 205-75 on mine and it seems to be a little too big...not sure though...

Also....how easy is it to replace the fuel filter on these trucks? and if it is easily done....where is it located?

Any help us much appreciated....thanks