Wondering if 245/75/16 tires will give me better MPG that 265/70/16? Overall diameter is the same
245/75R16 and 265/70R16 are essentially the same diameter ~30.5inThe overall diameter is slightly taller (30.5 vs 29.6 inches) which will also cause your speedo to read slightly lower.
"essentially" and "actually" are not the same concept.245/75R16 and 265/70R16 are essentially the same diameter ~30.5in
You calculated wrong and still have not realized, 245/75R16 is 30.5in, 265/70R16 are 30.6in."essentially" and "actually" are not the same concept.
There;s a 3.9% difference in diameter.
Look up up yourself
https://tiresize.com/comparison/
your eyeballs failed you note one is 245/75 the other is 265/70"essentially" and "actually" are not the same concept.
There;s a 3.9% difference in diameter.
Look up up yourself
https://tiresize.com/comparison/
regardless, .3% is still not the same.You calculated wrong and still have not realized, 245/75R16 is 30.5in, 265/70R16 are 30.6in.
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For the purposes of a speedo, it's not enough difference, your speedometer doesn't know how much tread depth you have, after a little tread wear the 265/70R16 tire will be no different than a new 245/75R16, .3% is close enough for the OPs question, it'd be close enough for a staggered wheel arrangement, the only place it wouldn't be close enough is if you're running them on the same axle, but then again I don't see why anyone would ever run a different width tire on the same axle unless it's a spare and it's used the way a spare is supposed to be.regardless, .3% is still not the same.