???? I'm fairly new to the forum, and I have tried not to ask silly, nonsensical questions, and I hesitate to ask this one, but I'm concerned about something regarding tires. When I bought the Class A last year the dealer simply said to keep psi to what the side of the tire stated, nothing else considered. That is 120psi, and that is what I did for awhile. During the last year I have put 10,000 miles on the tires.? Also during the last year I have read countless articles about the importance of weight vs psi. Somewhere down the line someone said to simply have 115 PSI, in all tires. Even though I knew that to be incorrect, I did that anyway. Recently I went to Freightliner for 12 month maintenance and was told I needed a tire rotation. That was done, and when I checked the air in all tires afterwards, they had gone with 105psi all tires. Then I go to a tire dealer just checking about what I am about to ask here.? He said they put no more than 100 in any of the tires they change/rotate/sell etc.? So, I went with 100psi rear, and 95psi front. My tire size is 255/70R22.5
? ? ?Now here's my silly question:? ?Each time I have adjusted tire pressure according to the so called experts, there has something strange happened. When I pull out of my garage with the motor home, there are black marks in my drive, and for 2 blocks from home I see the black marks whereever I turned a corner, and yes, I'm sure they are my marks.. This lasts for several trips, and happens after each pressure adjustment. I know, this is probably stupid, but is there something about these big RV tires that shows rubber left on the street and driveway. It has me concerned and confused as to how much tire pressure I should be actually going with, and if what I'm doing now is wearing too much tire.? thanks for some help.
? ? ?Now here's my silly question:? ?Each time I have adjusted tire pressure according to the so called experts, there has something strange happened. When I pull out of my garage with the motor home, there are black marks in my drive, and for 2 blocks from home I see the black marks whereever I turned a corner, and yes, I'm sure they are my marks.. This lasts for several trips, and happens after each pressure adjustment. I know, this is probably stupid, but is there something about these big RV tires that shows rubber left on the street and driveway. It has me concerned and confused as to how much tire pressure I should be actually going with, and if what I'm doing now is wearing too much tire.? thanks for some help.