Forum Discussion
63 Replies
- Reng8dExplorerHi,
I don't adjust my tire pressure due to the fact I would have to be constantly reprogramming the tire pressure monitoring system. As far as a compressor, if you need to fill a tire to 80lbs I have found that most litte or compact 12V compressors don't have enough airflow to fill a tire that much... - SlownsyExplorerOp contact the tyer manufacturer re pressures or as som has said take it to the scales and use a inflation chart a loving a little extre weight and don't worry about the grumpy ones
Frank. - greendeExplorer III leave mine at recommended pressure all the time but I only use my TV for tow/haul and it is not my daily driver. I don't have a problem with the way my truck rides with max pressure.
- Me_AgainExplorer III
GrumpyandGrandma wrote:
I haven't seen any tire pressure door stickers with 2 different pressures. I think the truck and tire manufacturers might know what is right.
Door stickers are for max axle loads. Read your owners manual.
To "Michelle.S" poster concerned about low inflation, my truck came with an inflation chart that showed that I could actually go lower that 42 lbs. I bought it new in June of 2001 and tires have performed well. I am just starting on the third set!
To OP, with a dually you do not have to run max sidewall pressure. It only takes 50 some lbs to support the RGAWR across 4 tires. I think that with a dually they are less likely to drive squirrelly with tires left to towing pressure.
Chris - GrumpyandGrandmExplorerI haven't seen any tire pressure door stickers with 2 different pressures. I think the truck and tire manufacturers might know what is right.
- racer4ExplorerAcei,
To lower the air pressure when you are unhooked, you need to know the weight on the rear tires when unhooked. Go to the truck scales at a truck stop and weigh your truck in that condition.
Then look up your tire size in a "Load and Inflation Table". One hard part is finding one. I recommend you save them for easier reference.
You can look by searching: load and inflation tables light trucks
For example:
table 1
table 2
My example: My truck's rear axle weighs a little less that 3200 lbs when the trailer is unhooked and the truck is load for a trip. The weight is evenly distributed, side to side. 3200/2=1600 per tire. I round up 150 lbs or more per tire for a safety buffer, then look up that weight for my tire, then add 5 psi or more to what the table says (for temp related pressure variation, possible air pressure loss, and more safety buffer). My tires are listed for 1910 lbs at 35 psi. I would add at least 5 or 10 psi to the 35 psi to get an tire pressure of 40 or 45. 45 psi gives me an acceptable ride, so I never go lower than 45. My understanding is these tables give the minimum air pressure to carry the load. Leave a safety buffer.
When I am somewhere for a few days, I leave the air pressure as is (ready for towing again). I don't want a chance of forgetting to raise the air pressure again before towing. Not that I would forget :R
I do recommend carrying a good air compressor.
I hope this helps. Read and seek understanding :). Save the info you find useful for future reference. - Bionic_ManExplorerTires on my 5er stay at 80 PSI (max psi) all year long.
My truck stays at the "loaded" recommendation from April - September. Off season I go to light load. - shadows4NomadI run 65 lbs in the front and 70 in the rear all the time. 265/75/16 E tires. Works for me.
- LantleyNomad
Jack_Diane_Freedom wrote:
I run max pressure all the time....no worries.
Me Too.
In theory you could adjust for loaded vs. unloaded but the reality of constantly airing up and airing down the tires is a pain the...
I keep my tire at max pressure and forget about it.
Maybe the ride quality would improve if I reduced pressure when unloaded, however the current unloaded ride with max. pressure is fine.
The hassle of airing up and down is more trouble than any potential improvement in ride quality. - laknoxNomad
Acei wrote:
Yes I am talking about the rear wheels, pulling a 5th wheel.
Ok, so some of you DO adjust the air pressure... For those who do adjust, how do you increase the pressure? Do you use a portable air compressor hooked up to the cigarette 12V power?
When we eventually go full-timing, we will drive a 1t dually. Will dually behave ok not towing when the tires are max pressured? We do expect to drive every day and sometimes 100-200 miles at a time when not towing.
When traveling, I don't mess with tire pressures. I have yet (dammit!) to be able to sit in one place more than a few days, so it's a non-issue for me. Were I able to do so, I'd either carry a small compressor or visit a local tire shop the night before I was leaving to bump them back up. For that matter, some CGs have an air station, though there can be a line there.
Lyle
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