I just switched to Michelin LTX MS2's from GY's
03-02-2014, 10:23 PM
#62
Senior Member
Yes E rated tires are 80psi max. At least every one that I have seen.
FWIW my F150 (see sig) recommends 55 front and 60 rear. They are BFG LT E rated tires. My rear axle is 4,800lb rating. The tires say they will support 3,195lb each.
FWIW my F150 (see sig) recommends 55 front and 60 rear. They are BFG LT E rated tires. My rear axle is 4,800lb rating. The tires say they will support 3,195lb each.
03-02-2014, 11:40 PM
#64
The 275/65 in the 18 is like the "medium" as most tire manufactures make the 275/65 in a P & LT rated tire. From this size tire I see a pattern as shorter height tires come as P-rated & a taller height comes as a LT-rated tire.
The Michelin LTX MS2 P275/65R18 is 42LBs & the LT275/65R18 is 50LBs.
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The Michelin LTX MS2 P275/65R18 is 42LBs & the LT275/65R18 is 50LBs.
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Adobe2X (03-03-2014)
03-02-2014, 11:44 PM
#65
I tried driving on 35ish once on the rear & I wont go that low again as I could feel the difference in the drag of the tire.
I was trying to wear the out sides of the tire more to offset the center wear I had. LoL
03-03-2014, 03:19 PM
#66
Retired and loving it!
Thread Starter
I finally got through to a Michelin tech who knew his elbow from a hole in the ground.,...after calling the 866 toll free number. I first talked with a nice lady who looked up our truck on her information page and recommended 35 psi!!!!! When I told her that she was looking at a 4 ply tire, not the 10 ply, all she could tell me was that what her information page showed.
I almost had to fight with her to get her to transfer me to a Michelin "TECH" for more information............finally got the tech on the line after about 30 minutes........
WOW, what a difference to talk to someone who knows his stuff. He admitted that the first person I talked to was referencing only the 4 ply ratings, and said that he would have that corrected when someone needed the 10 ply ratings.
He asked specifically for my GVWR, year, trailer length and tongue weight. He then advised of the specific sidewall ratings (down to the exact pound) for weight capacity (4 ply vs 10 ply), and did the conversion to a 10 ply tire for our 1/2 ton configured specifically as a 4X4 Lariat.
His expert advice was this:
Run 55 psi in these tires unloaded, as anything in the mid 40's or less is severely underinflated. And he also said that, as the tongue weight of our TT (700 pounds) is so low, that I do not need to worry about increasing the psi when towing, as the 10 ply sidewall is stiff enough (again according to his sidewall rating chart) to support that no problem.....though I probably will go up to 60 or so when I tow....
I think I may start another thread with this information for those running these tires rather than have this important info buried at the back of this thread.
I almost had to fight with her to get her to transfer me to a Michelin "TECH" for more information............finally got the tech on the line after about 30 minutes........
WOW, what a difference to talk to someone who knows his stuff. He admitted that the first person I talked to was referencing only the 4 ply ratings, and said that he would have that corrected when someone needed the 10 ply ratings.
He asked specifically for my GVWR, year, trailer length and tongue weight. He then advised of the specific sidewall ratings (down to the exact pound) for weight capacity (4 ply vs 10 ply), and did the conversion to a 10 ply tire for our 1/2 ton configured specifically as a 4X4 Lariat.
His expert advice was this:
Run 55 psi in these tires unloaded, as anything in the mid 40's or less is severely underinflated. And he also said that, as the tongue weight of our TT (700 pounds) is so low, that I do not need to worry about increasing the psi when towing, as the 10 ply sidewall is stiff enough (again according to his sidewall rating chart) to support that no problem.....though I probably will go up to 60 or so when I tow....
I think I may start another thread with this information for those running these tires rather than have this important info buried at the back of this thread.
Last edited by Adobe2X; 03-03-2014 at 04:07 PM.
03-03-2014, 05:16 PM
#67
Senior Member
Well that is consistent with what my truck has on the door sticker. 55 front and 60 rear.
The only reason to run less in the rear is if it is hard to get traction on wet pavement when you are empty.
The only reason to run less in the rear is if it is hard to get traction on wet pavement when you are empty.
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Adobe2X (03-03-2014)
03-03-2014, 06:46 PM
#69
Retired and loving it!
Thread Starter
