Quote:
Originally Posted by CWtheMan
That statement marked bold and in orange does not apply to vehicles manufactured under the guidance of FMVSS standards. Those standards apply to 99% of all RV trailers and their tow vehicles.
The following statement is supported by the entire tire industry; NEVER use cold inflation pressures below vehicle manufacturer recommended cold inflation pressures for your OE tires. You will find a statement similar to that on page #44 of the reference provided below. (Page 44 is in chapter #4, R, V tires).
https://www.ustires.org/sites/defaul...TruckTires.pdf |
okay, but that's still very different than saying "never use a pressure below the max rating for the tire itself", which you hear a lot around here. The question was 'can I run the D rated tires at 50 psi instead the max rating of 65 psi'. Assuming that 50 is >= the trailer manufacturer recommended cold inflation pressures for his OE tires, then the answer is
still yes (also assuming that number isn't less than what the new tire manufacturer recommends for the D rated tire at the trailer's actual weight). It doesn't conflict with the highlighted portion of your post about the FMVSS standards, correct?