Tire Pressure
Hi I have dual tires in the rear of my motor home & obviously 2 in the front I know front tires are to be set at 65 psi max & rear tires at 80 psi What is considered a safe range among all 4 rear ...
Forum Discussion
ron.dittmer wrote:
What I practice using various gauges. I use a stick gauge. I love dial gauges but don't have one that reads more than 60 PSI. My experience with a digital gauge did not go well. I should look into buying one specific for dualies.
My Process..........
1) Check tire pressure before the driving day starts, BEFORE the sun hits any one tire.
2) All 4 rear tires are as close to the same pressure as can be possible using my stick gauge.
3) The same for the front tires, but the pressure is not the same as the rear.
Regarding pressure settings......
I have experimented over the years. I have followed the proper PSI per the actual load on the tires and they all visually appear significantly under-inflated. I verified the reading with my trusted gauge by comparing the reading against other gauges. So I add 5 additional PSI for peace of mind so the tires don't look so under-inflated. When I add 10 PSI more, they appear just about right but then the ride gets too harsh and the rig handles worse.
According to the documentation from my Michelin "E" rated tires and my RV manufacture, I should have 60 PSI in the 4 rear tires and 65 PSI in both front tires. My practice is 5 more PSI to those numbers. My rig is less than 24 feet long. It is built on a 2007 E350.
I have long stainless braided extensions that were installed 9 years ago and never disturbed. (Yes the tires are 9 years old now) I think it's time to remove the extenders for the sake of reliability. I fear an unnoticed leak will produce a blow-out.
Can anyone recommend a good DIGITAL tire gauge that works well for dualies without valve extensions? I don't mind crawling on my back to get a reading.
TPMS is best way of knowing if you are loosing air from tire, valve or hose extenders.
Based on checks against ISO standard laboratory gauges I have found that the $12 Accutire is accurate to +/- 0.5 psi
I use the 150 psi max (good to measure 30 - 130 psi) Accutire as my "Master" and only use it once a month to check the reading of my "work" gauge. Since I run hose extenders
I don't need a dual foot gauge.
