What tire pressures do you run when towing your Voltage? - Dutchmen Owners

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Old 05-30-2015, 06:40 PM   #1
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What tire pressures do you run when towing your Voltage?

What tire pressures do you run when towing your Voltage?

some say run 80's all around

others say go by sticker on door, my 13 f350 dually door sticker says 65 rears and 70 fronts.

what is the advantage and disadvantage of higher or lower psi?

on recent trip 1200 mile trip i towed our new 3805, and only got 8mpg with 80 psi all around...

wondering if i will get better mileage going to mfr recommendation of 65 psi rear and 70 psi front?

which one gets better mpg? more air or less air?
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Old 05-30-2015, 06:57 PM   #2
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I run what it recommends on the tag. My 2013 F350 DRW says 65 PSI Rear and 75 PSI Front. No reason not to run what the correct pressure.

I doubt that you will see much of an mileage change unless you are driving on flat tires though.

My Dodge 3500 with 19.5" wheels and tires get the 110 PSI as marked on the tire. The Voltage with Goodyear G614's get 110 PSI as marked on the tire.
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Old 05-30-2015, 07:38 PM   #3
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I was told by a tire rep, 5 to 10 under max that way tires have room to heat up less blow outs. his 2cents
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Old 05-30-2015, 09:23 PM   #4
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Since I live in AZ where it's hot and travel to cooler weather (lose 3-4psi), I think I will go 5psi above mfr recommendation for front and rear. It wil be 70 rear and 75 fronts, still less than 80psi max...
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Old 05-31-2015, 01:57 AM   #5
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I run what the door sticker says, 70 front and 65 rear. I've also weighed my rig and the door numbers are spot on for the weight according to
Michelin.
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Old 05-31-2015, 08:57 PM   #6
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I used my door sticker until I weighed my truck the first time. Following that, I downloaded a load/inflation chart and set my tire pressures based on the weight they are supporting. Turned out I needed 65 front, and 50 rear. Both over inflation and under inflation cause uneven wear. Definitely noticed an improvement in the ride of my 1 ton truck, and have had no abnormal wear in 20k miles.
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Old 05-31-2015, 09:04 PM   #7
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Where do I find the load/inflation chart?

Where do you weigh the truck and trailer?
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Old 05-31-2015, 09:17 PM   #8
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Just google "load inflation chart" and you should get many results. The charts can come from multiple manufacturers, and may be specific to particular tire sizes. Just wade through the results till you find a chart that supports your tire size. As for weighing, just google "CAT scales". Once on the CAT scale website you will be able to find a location near you, along with the procedure for getting your weight. Don't be afraid to use the CAT scale, nobody will give you a hard time. You can also get a weight from a local co-op or grain farm (of those facilities are located near you). My truck and trailer are too large for our local co-op scale, so I have to use the CAT scale at our nearest Loves. Once you have your weight, you'll be able to make all kinds of good decisions regarding towing your trailer (ie. tire pressures, weight distribution, etc.)
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Old 06-01-2015, 06:04 AM   #9
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I run what is on the door....folks much smarter than I am were paid a lot to figure it out... When unloaded, I run my tire inflation depending on a chalk test... When loaded, the door sticker. I leave the rears alone. Having a DRW, filling up to max is probably more than the rear axle can handle, so just what the door sticker says...

Cale
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Old 06-01-2015, 06:41 AM   #10
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On all the vehicles I've ever owned, I begin for a while with mfgr specs. Like calewjohnson said, they're supposed to be smart on this. But I'm smart enough to know about averages, and that my own load may differ. So after I begin to see some tread wear, I'll adjust it a little, up or down, usually no more than 3 psi, if I see the outside edges or middle wearing a little too much.
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Old 06-02-2015, 02:56 AM   #11
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Quote:
Originally Posted by bill_covert View Post
I was told by a tire rep, 5 to 10 under max that way tires have room to heat up less blow outs. his 2cents
His 2 cents is worthless then. Lower pressure = faster heat up time.
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Old 06-02-2015, 03:55 AM   #12
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Originally Posted by Brandt51 View Post
His 2 cents is worthless then. Lower pressure = faster heat up time.
Agreed. I have studied this allot. Lower pressures equal hotter tires.
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Old 06-02-2015, 11:55 AM   #13
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Quote:
Originally Posted by arlan in arizona View Post
Agreed. I have studied this allot. Lower pressures equal hotter tires.
Agreed! When I fill my tires, I triple check the presure, once when filling with my air chuck/gage, secondly with a digital gage, then lastly when I put my TPMS sensor back on. All three will vary by 1 or 2 psi so I always use the lowest reading to set my pressure to the psi/weight of tire manufacter.
I guess that would bring up another question, what affect would 1-2 psi over max have on tires? I haven't noticed anything.
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Old 06-02-2015, 05:20 PM   #14
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Originally Posted by Thom View Post
...what affect would 1-2 psi over max have on tires? ...
It will have not hurt anything. When I had Maxxis on a smaller travel trailer, they stated that I could run 10 psi over max, which would allow for 75 mph vice 65, however, 10 psi more does not equal to more weight that the tire can carry...

I think there is a manufacture or two that actually states that...

On that trailer, I kept them 10 over, not to run faster, but the tire sidewalls themselves were actually cooler when checked with an IR thermometer. Yes, not an exact science because there are too many variables, but it made me feel good...

Cale

On edit...Just in case anyone is from Missouri (The Show Me State):
Read this: http://www.tirerack.com/images/tires...plications.pdf
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Old 06-02-2015, 07:18 PM   #15
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I run 60/80 per my door sticker. No reason for me to out guess the experts.
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Old 06-03-2015, 08:23 PM   #16
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As a mechanic by trade, I would tell you put what the door sticker says, BUT look at the sidewall on your tire and make sure someone hasn't put the wrong weight rated tire on your truck, which happens a lot. From the factory you may have had a 8ply tire which would have about an 80 psi max pressure and someone could have put a 6ply tire on in its place which might only have a 50 psi max pressure, dealerships are great for doing this before they put it on the lot, 6ply is cheaper than 8ply. Be careful and make sure you check these things before you just go adding air.
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Old 06-04-2015, 06:34 PM   #17
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well his 2cents got me 70,000 miles on bf Goodrich rugged trail 17' I have a 2010 f250 short bed 6.4 when towing 75 psi when not towing 65psi it work for me.
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