255/80r17 tires

**68muleteem** · 02-29-2016

I just installed 255/80r17 Cooper ST MAXX on my '11 2500. They are only about 1 1/4" taller and a little bit narrower. First impression, they had a wicked high frequency vibration for the first 80miles or so but it went away. I have not had them long enough to know if they will change fuel mileage. They look a lot bigger than they are on the truck. Deffinatly have good traction. I hope they last at least 40k, but time will tell. I would try them if you were thinking about it, the tire shop said they looked pretty good and they are made in the USA.

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**AnOldBiker** · 03-01-2016

Thread looks similar to the Goodyear Destination MT I had for awhile. They were good year round and expecially in the winter tire.
But overtime I noticed a roughly 1 mpg loss and when they were about 1/2 worn they talked to me .... loudly to me. Mileage life ... I got about 70+k when I had to replace them.
So you might look at the 1 mpg loss, and I hope they aren't that talkative. And per my wife, it's a very .. loud .. one sided conversation.

And I'm sorry, I noticed it's your 2nd post, did I say:

to the forum yet ?

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**68muleteem** · 03-03-2016

So far I am ahead on mpg by a full day, 80 miles round trip to work. Some is from warmer temps, but not all. I can turn the radio up for 70k!! The wife doesn't like riding in my truck anyway.

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