Mods, feel free to move this if it's in the wrong forum.
I started out with 3.27 gears and 235/75-15 tires (28.9). Now I have 4.88 gears and 37x12.50-16 tires. I've seen all the conversion calculators to find out new speed, gear ratio, etc, but nothing for having bigger tires AND new gears.
I filled up today and the trip meter said I drove 268.0 miles. It took 15.873 to fill it back up. Obviously, it would normally mean I got 16.88 mpg. But I don't know what ratio I need to multiply that by to find out my REAL mpg w/ the 37s and 4.88s. It still has the stock speedo gear also. Any help?
I started out with 3.27 gears and 235/75-15 tires (28.9). Now I have 4.88 gears and 37x12.50-16 tires. I've seen all the conversion calculators to find out new speed, gear ratio, etc, but nothing for having bigger tires AND new gears.
I filled up today and the trip meter said I drove 268.0 miles. It took 15.873 to fill it back up. Obviously, it would normally mean I got 16.88 mpg. But I don't know what ratio I need to multiply that by to find out my REAL mpg w/ the 37s and 4.88s. It still has the stock speedo gear also. Any help?