Tire Air-Presure Preparation: timing
Silly question: We are getting ready for a short journey tomorrow afternoon; is it okay to check and fill the air in the trailer tires today; or, should I wait until tomorrow? Does it really matter?
Forum Discussion
I asked a similar question on a different RV forum and did not get an answer. If I understand it the OP is asking about ambient temps for setting tire pressure.
If we do that first thing in the morning before starting a trip the ambient temps might be 60 degrees. If we check later in the day, we do need to make sure the vehicle has not been driven and we need to be sure the tires have not been sitting in the sun. Now the ambient temp might be 85 degrees. Setting pressure at one time versus another can have a very substantial effect. That is what happens within one day's time. Over the course a few days ambient temperature fluctuations can be considerable. I am not sure what makes sense. One thing that does not make sense to me is trying to constantly change and readjust pressures due to daily changes. If the temps are changing when we are setting pressures, they are also changing when we drive at different times of the day.
My rear tires are running at very close to maximum load capacity and I set the pressures at the maximum. I try to error on the side of higher pressure. That means on a cool morning I might be at or just less than the max pressure. On a warm day I might start out several pounds above max.
If we do that first thing in the morning before starting a trip the ambient temps might be 60 degrees. If we check later in the day, we do need to make sure the vehicle has not been driven and we need to be sure the tires have not been sitting in the sun. Now the ambient temp might be 85 degrees. Setting pressure at one time versus another can have a very substantial effect. That is what happens within one day's time. Over the course a few days ambient temperature fluctuations can be considerable. I am not sure what makes sense. One thing that does not make sense to me is trying to constantly change and readjust pressures due to daily changes. If the temps are changing when we are setting pressures, they are also changing when we drive at different times of the day.
My rear tires are running at very close to maximum load capacity and I set the pressures at the maximum. I try to error on the side of higher pressure. That means on a cool morning I might be at or just less than the max pressure. On a warm day I might start out several pounds above max.
