Lately I have been driving about 40,000 miles per year. I feel pretty confident making my oil & oil filter change every 10,000 miles, which is 4x/year, which I use full synthetic.
I am wondering what, if anything I could modify to properly represent the amount of driving I do (and the amount of gas I burn).
If it matters about 75% of my driving is long distance, congestion free highway driving, but with some hills.
Some items I am wondering about is can these be extended and if so by how much:
Belts (not timing)