At what psi can I travel 65-75mph?

K Charles wrote:
Do a search on " Goodyear service bulletin PSB #2011-13" it for one says you can go 75MPH.

I will STFW for that right now!

Here it is! SUBJECT:
Proper Puncture Repair Procedures For Passenger & Light Truck Tir
es
(R
eplaces PSB 2011-01) , where exactly is the +10psi rule?

HTH;
John

65mph is the tires rating...a safety rating, like most tow ratings. It is not a limit or a max that if exceeded, failure occurs.

Run max cold PSI, drive 65-70mph if you want to, but be darn sure of your overall set up and weights. Over 70mph with a camper isn't wise.

The rest is just luck...and bad luck can happen to anyone...anytime.

Do a search on " Goodyear service bulletin PSB #2011-13" it for one says you can go 75MPH.

When I see you at the next rest area 5 minutes after you arrive, I can't wait to see how those tires performed!

fj12ryder wrote:
Of course you'd need to make sure the wheels were also rated to the higher pressures.

That would be true ONLY if the "extra 10 PSI" meant raising it above the tire's max limit. I don't think that's what this "rule" means, assuming it exists at all.

Of course you'd need to make sure the wheels were also rated to the higher pressures.

+10 is a GY Marathon notation.

Personally I might inflate to max and run 65/70 but that is enough.
Go easy in the 90+ heat either way.

:B

Hi, John...I see you're still trying to clear up the same question we haven't seen answered in the other current thread this question arose in!

Let me say that this is a purely academic question for me, as I wouldn't think of towing at speeds faster than the low sixties, no matter WHAT tires I had on. Who wants to pay what I like to call "the stupid tax": huge penalties, gas-mileage-wise? The oil companies are doing just fine already...;)

The question has to do with an oft-repeated statement that speed limits on ST's can be exceeded under specific conditions having to do with tire pressure and load. Some folks seem to think that adding ten PSI allows for such an increase, although no one appears to be able to come up with a manufacturer directive that says so. Furthermore, some appear to think that if true, the statement constitutes a directive to exceed the tire's stated maximum pressure- a presumption that I believe to be untrue.

Hangin' around to find out what's what from the experts...

goducks10 wrote:
Let me know when you're running 75mph, and I'll stay home that day.

X2!

The second column should be abundantly clear.....65 MPH!