Post by
nissantech06 »
https://forums.nicoclub.com/nissantech06-u77330.html
Sat Oct 06, 2007 9:23 am
Anytime you go with different wheels than factory, you have changes. Yes, the wheels MIGHT not change it, but the fact that the wheels are A. wider and B. larger will eventually cause your mileage to drop, if only 1 or 2mpg. It also depends on what type of gas you use. If you use Shell or another major brand-name, you should get somewhat close to the EPA estimate (keep in mind it is JUST an estimate). But, if you use Wal-Mart or some local Schmoe gas station, the octanes are usually 2 points lower than advertised. It's a long story, but cheaper places have cheaper prices because they buy the leftover gas cheap.