Sailun Tire Failure

groggy2 wrote:
I replaced the Goodyear Endurance 16's on my 2018 27-5L with Sailun 637's. I was advised by the tire shop that they were advised that 80 psi was the pressure for my application as they didn't have a stabilizer ban in the tire body. I actually have 90psi in all 5 sailuns. Most of my travel so far with this set-up has been the Texas-New Mexico-Arizona area. This summer should tell the story, but so far so good. I pull with a 2001 Ram 3500, quad cab, 19.5 tires on Alcoas, 6 spd with gear vendor overdrive, fass fuel system with 300 hp injectors, and 134 gal. fuel capacity. Mileage to date is 270k. The truck will cruise comfortably at 80 mph, but of course pulling the 5er, speed is held to 65-68 mph. The 5er will gross out around 13k, and we downsized from a 40 ft.Gulfstream Friendship that would run all day long at 70. But I would rather just take it easy with this set up. I may get some tire pressure monitors.

I don't want to wander too far off the topic of the failed Sailun but I would like to share my experiences with the Sailun S637.

I also have an AF27-5L. I run Sailun S637 ST235/85R15. When I first started running these tires I was starting to see weird irregular shoulder wear. I asked about this and was told that the Sailun S637 does NOT have a stress equalizer rib (I'm not really sure what this is but I think it is the same thing that your tire folks called a stablizer ban).

In talking with Alan he said I was over-inflated and I should lower the PSI in accordance with the Tire and Rim Association tire inflation tables. Alan went onto to say that they see this a lot on commerical truckers because they almost always inflate to 110psi.

He repeated that I would be best served by weighing the trailer and use the tables - he said that's what they are they for.

Bill