Tires - Load Range D vs E
My trailer uses 225/75R15 load range D tires. Checked my local tire stores and all of them only had load range E tires in stock. One of the guys tried to push me into getting load range E because "the...
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I tried running a higher load range than my equipment trailers could use at a derated pressure. The results were always the same....hot tires and a shortened life span.
Those type trailers on the road may use 2 sets of tires per year at 40k-60k per set.
lesson learned was never mount a tire with more than 10-15 percent reserve capacity above axle loads in a trailer position.
RV trailers don't run this type of hard service/high miles/high interstate speeds..... so some may get by with derating a load E tire to 65 psi.
If you use a Carlisle their warranty says to use max sidewall pressures.
Like our resident tire engineer Tireman9 has told us and says in his rvtiresafety blog when he was asked....
**Is there any advantage to a load range E tire used at 65 psi vs a load range D tire at 65 psi?"**
*The answer to the question is;
He will gain a safety margin if he increases his inflation to 65psi with LR-D but if he stays at 65psi there is nothing further gained by going to LR-E tire as there is no difference in the capacity at 65psi.
The op made a wise choice for long term service IMO.
Those type trailers on the road may use 2 sets of tires per year at 40k-60k per set.
lesson learned was never mount a tire with more than 10-15 percent reserve capacity above axle loads in a trailer position.
RV trailers don't run this type of hard service/high miles/high interstate speeds..... so some may get by with derating a load E tire to 65 psi.
If you use a Carlisle their warranty says to use max sidewall pressures.
Like our resident tire engineer Tireman9 has told us and says in his rvtiresafety blog when he was asked....
**Is there any advantage to a load range E tire used at 65 psi vs a load range D tire at 65 psi?"**
*The answer to the question is;
He will gain a safety margin if he increases his inflation to 65psi with LR-D but if he stays at 65psi there is nothing further gained by going to LR-E tire as there is no difference in the capacity at 65psi.
The op made a wise choice for long term service IMO.
