Tire Pressure for G Rated Tires
My 2016 Montana High Country came with ST 235/80R/16 E tires rated for a max load of 3,420 pounds at 80 psi. The selling dealer upgraded the tires to Goodyear G614s 235/85R/16 G rated for a max load ...
Forum Discussion
Best is not to go blind on the pressure/loadcapacity chards that you find on the internet, especially those made for the American market.
They are made with a formula that leads to to much deflection in the lower pressures.
America stepped over to the European calculation as late as 2006 , Europe used that calculation for all kind of tires from Standard load up to truck-tire for decades.
America only stepped over to Eur calc for Standard load and XL P-tires and left C-load and up to the old calculation.
The conclusion of an article of American IR J.C. Daws is that the Eur calc is adequate for Standard Load and XL , but for the higher Loadranges ( certainly from E-load) even the Eur calc comes to to low loadcapacity's in the lower pressures.
Best is to use my made extra save pressure/loadcapacity lists.
those are maybe even a bit pessimistic so never unsave for tires.
Extra save pressure loadcapacity lists
PDF leftclick look in browser, rightclick download to your computer
They are made with a formula that leads to to much deflection in the lower pressures.
America stepped over to the European calculation as late as 2006 , Europe used that calculation for all kind of tires from Standard load up to truck-tire for decades.
America only stepped over to Eur calc for Standard load and XL P-tires and left C-load and up to the old calculation.
The conclusion of an article of American IR J.C. Daws is that the Eur calc is adequate for Standard Load and XL , but for the higher Loadranges ( certainly from E-load) even the Eur calc comes to to low loadcapacity's in the lower pressures.
Best is to use my made extra save pressure/loadcapacity lists.
those are maybe even a bit pessimistic so never unsave for tires.
Extra save pressure loadcapacity lists
PDF leftclick look in browser, rightclick download to your computer
