Decrease in MPG by 1 point... Tires to blame?
Discussion in 'Ask An Owner Operator' started by Rubys0h0, Oct 15, 2021.
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These were the tires recommended to me by the guy at my local tire shop. They are not LRR so I don't even think I can technically go to California. Pretty pissed about it. Wish I would have done my research before going in.
Rideandrepair and Midwest Trucker Thank this. -
Yes it's the tires. I lost .5 to 1 mpg when I went to Yoko's from michillin XDN2.
Rideandrepair and Rubys0h0 Thank this. -
Yes, you could check odometer VS GPS to see if odometer is off. Then just have a simple ecm change.Rideandrepair Thanks this. -
Also the circumference of the tire is different now. Not 12% different.
Rideandrepair Thanks this. -
Everyone has their own preferences on tire pressures. I have never found an advantage to running tires lower than max spec tho anywhere between vehicle spec and tire max pressure rating is a good rule. I choose not to deflate a tire to enhance ride quality as I feel not worth the risk of any accelerated wear that might occur due to underinflation. Generally speaking I have always gotten longer life out of a hard tire.Rideandrepair, Diesel Dave, Flint1 and 1 other person Thank this. -
I chock most of it up to deeper tread depth. You have much better grip now. More grip = more friction.
You'll need to average it out over a much longer duration. A good head or cross wind will wreck your mpg for the week.
A good set of tires with lots of bite is never a bad thing heading into winter.nredfor88, Rideandrepair, Goodysnap and 1 other person Thank this. -
Bean Jr., Magoo1968, 77fib77 and 1 other person Thank this.
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Bean Jr., Rideandrepair and Dave_in_AZ Thank this.
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Don't forget that the truck stops are switching to winter blend fuels right now, and it typically reduces fuel economy 1 or 2 mpg.
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