Inflating tires 10lbs over?
Sorry to do this, as I am sure it has been discussed a lot - but my searches came up dry... So there was advice floating around on a past boat forum that properly inflated ST tires were rated for a...
Forum Discussion
AH64ID wrote:
That's 100% your choice as the consumer; however, the sidewall data and the bulletien came from the same place.. the tire manufacturer. Both should carry the same weight.
Often times there are bulletien a, white papers, engineering releases, etc that supercede the data at the time of manufacture. Data changes, it's as simple as that.
I ran Marathons for 7 seasons on 2 different trailers. I had zero speed related failures with them and would drive at speeds of 70-75 them a couple times a year, sometimes all day long in 90° plus temperatures. I have since switched to a LT tire but not for the speed rating.
It's 100% my choice in opting to be safe. I'll use information that is printed on the tires sidewall...the way I purchased them and why I purchased a certain tire. ... That way I'm not taking away or adding anything, or assuming anything...How many consumers will actually look at or for a "bulletin"? I doubt very many will ever do that and I'm no telling anyone, "Hey, you have an ST tire there rated at only 65 mph...but if you want to go 75 mph, just add 10# over the cold air recommended sidewall rating.... I couldn't in good conscience tell someone that it's ok to do that.
BUT, I've done almost all of my towing over the last 40 years in mountainous states, not where long expanses of straight flat highways were involved and I've had only one tire failure due to a weak spring pack in all those years.,, I always aired to recommended tire pressure on trailer placard and never any higher than recommended max sidewall cold psi.. nor ever added extra psi so that I could go faster....but I tend to err to the side of safety when towing.. or not towing.
