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Old 09-24-2014, 10:25 AM   #113
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Originally Posted by dkottum View Post
Doug

Funny, after all the agreement on the reliability of 16" Michelins, you would ask about tire pressure, where there is general disagreement. And for good reason if the Michelins are causing a rough ride for your Airstream.

The Airstream factory placard for 16" Michelin-equipped models is 80 psi. Many say that is too much, so the question is what is too little, the point where we might get sidewall "wobble" from sway forces. Or overheating in some climates.

I'm trying 70-75 psi next long trip for our Airstream as we load it (lightly) depending on where we are. A particularly rough road may have me letting a little air out, we'll see how it goes.

73 psi cold (@40 degrees ambient) seems to work well for us on our 16" Michelins; however, the pressure does go up to 82 psi as the outside temperature raises (85-90 degrees) and the tires have rolled down the road at 55-62 mph. Checking tire surface temperatures shows it fairly even across the tread. YMMV
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Old 09-24-2014, 02:50 PM   #114
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Originally Posted by mefly2 View Post
73 psi cold (@40 degrees ambient) seems to work well for us on our 16" Michelins; however, the pressure does go up to 82 psi as the outside temperature raises (85-90 degrees) and the tires have rolled down the road at 55-62 mph. Checking tire surface temperatures shows it fairly even across the tread. YMMV
Thanks for this - I have them set right now at 70psi and will monitor them with my TMPS in the truck.
With us leaving tomorrow, it will not take long to figure out if it working or not

Thanks again

Doug
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Old 09-24-2014, 05:15 PM   #115
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Doug, have a great trip and check in with your results on tire pressure.
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Old 09-25-2014, 10:03 AM   #116
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I have had many ST tire failure issues over the years on other trailers before our Airstream experience.

I have never had a Michelin tire failure in over 40+ years.

Thus, I installed 15" Michelin LTX (P) 235/75R15 XL tires on the 25FB with a GVW of 7,300 pounds and the 16" Michelin LT225/75R16/E LTX M/S2 tires on our 31' Classic with a GVW of 10,000 pounds.Both trailers also had Centramatic wheel balancers and the Classic has a Dill TPMS as well.
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Old 09-27-2014, 08:37 PM   #117
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Well the tires have been running really well... We have run about 1500 km the past few days with outdoor temps in the low 90's. I'm running the tires (cold) at 70psi. The temp in the tires has stayed under (outdoor + 8) so they are running very cool so far.


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