What could one expect to gain reducing two tires on a car from 285/40 to 225/50, the larger tire being a soft 180 tread wear compound and the new tire being a 400+ LLR.
The car seems to do 35MPG on a good day so lets use that as a starting point. The newer tire would be 1-2% smaller that the original so hopefully the gain would outweigh the loss in diameter.
For kicks what would be your guess at a final MPG if I did the following
- New tires
- Alignment (currently pull a bit to the right and totally ate the inside tread of the front right tire in a couple thousand km's, Toe is off, and at least 3/16ths toe in
- Switching from dino to synthetic oil in the trans and diff, lightest weight possible.
Wanna see if I can hit 40mpg one day
