We got weighed at Escapees in Livingston , Texas. Subsequently I set the tire pressure according to the Michelin table. The back tires felt great but the front felt a little squirrelly so I dropped them by 5lbs psi and it drives much better.Other than tire wear, is there and danger or disadvantage to running the tires a little bit low?

deprived wrote:We got weighed at Escapees in Livingston , Texas. Subsequently I set the tire pressure according to the Michelin table. The back tires felt great but the front felt a little squirrelly so I dropped them by 5lbs psi and it drives much better.Other than tire wear, is there and danger or disadvantage to running the tires a little bit low?Absolutely! Lower pressure induces higher running temperatures...which can lead to tire failure. SOP is to run tires 5% higher than Michelin recommendations as a safety factor.

New tires can be a little bit squirrley at first. I would go back to what the chart calls for.

How did your front and back weight ratio work out? Many rigs like yours have water tanks well towards the back, and of course that can make the front feel light. Loading into the compartments at the back can also affect handling.You could try a new steering stabilizer shock perhaps. One time that made a huge difference for me.

Be aware that using your actual wheel position weight, selecting the heavier wheel position on that axle and going to the inflation table gives you the MINIMUM PSI FOR THAT LOAD-- all tires on an axle to have the same PSI dictated by the heavier wheel position.Yes, the big danger is a blowout. Carrying less than recommended pressure= (yes, is the same as) being overloaded.You do not mention what chassis you have-- please post.And, by "Squirrely" please describe more fully.

deprived wrote:Other than tire wear, is there and danger or disadvantage to running the tires a little bit low?What kind of a rig is this on and how do the pressures compare to the original pressure recommendations for stock tires ? And are they the same load range tires as original ?Yes running them low can be a problem but determining what really constitutes low can be a problem too.Ford E350/450 chassis have a problem with the alignment settings.

Running tires lower than Micheline spec ? | Good Sam Community

13 Replies

Artum_Snowbird
Explorer
Aug 13, 2016
How did your front and back weight ratio work out? Many rigs like yours have water tanks well towards the back, and of course that can make the front feel light. Loading into the compartments at the back can also affect handling.

You could try a new steering stabilizer shock perhaps. One time that made a huge difference for me.
Ivylog
Explorer III
Aug 13, 2016
New tires can be a little bit squirrley at first. I would go back to what the chart calls for.
Ed_Gee
Explorer II
Aug 13, 2016
deprived wrote:
We got weighed at Escapees in Livingston , Texas. Subsequently I set the tire pressure according to the Michelin table. The back tires felt great but the front felt a little squirrelly so I dropped them by 5lbs psi and it drives much better.

Other than tire wear, is there and danger or disadvantage to running the tires a little bit low?

Absolutely! Lower pressure induces higher running temperatures...which can lead to tire failure. SOP is to run tires 5% higher than Michelin recommendations as a safety factor.

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Running tires lower than Micheline spec ?

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