zing
Platinum Member
I wondered too at first- but the change in drive-ability sold me- and in addition:
Proper tire pressure for F350 front and back - Diesel Forum - TheDieselStop.com -from 2005
Tire Pressure for everyday driving - Ford Powerstroke Diesel Forum -from 2015
and:
F350 Tire Pressures - Ford Truck Enthusiasts Forums -2017
and finally:
Proper Tire Inflation
Although I have to admit, I never read those back in the early 2000's when I bought it lightly used- instead I asked my [former] mechanic/ [still] fellow high school alumnus, who runs a fleet of them as haulers and plows- and he told me that I could either follow the door plates reccs, or do as MO, and others have stated and lower the pressures for comfort- but I have always felt that when tires are softer, I don't feel the road as well, so I don't feel as in control of the process.
[I had words with his service manager about his [the manager's] policy of wanting to spend my money, instead of learning how to cost-effectively diagnose vehicle problems, so we don't do business there anymore.]
It's probably a hold-over from when all the vehicles I had really ever driven much were of the standard/manual transmission flavor, and I didn't really like or trust AT vehicles as much.
In fact, I almost bought an F350 w/ a MT, but I was already feeling the age of my knees, and knew that it/they would also get old pretty quickly.
BTW, my truck is a 7.3L diesel, and I don't care at all about about ride [and hardly at all about tread-life] because it's registered as a farm truck- so it sits a lot, with occasional intervals of heavy hauling for stone, logs, family moving days, and in the winter snowplowing with approx 600-8000# of scrap iron in the bed.
Sadly, until the rush to raise diesel prices happened just before Hurricane Katrina even hit, it had been my daily driver...
Thank you for the detailed response, good info there!
Question not just for you but also for the others that are saying they run on lower pressure for driveability and better tire wear. Doesn't the TPMS system go off? I took a look at some of the forums you linked to and there are ways to do it but it seems like you need to download forscan software, copy it to an ipad/phone, buy a bluetooth BDB connector from amazon, activate a license, then reset the range on the truck computer. Details here (FORScan Spreadsheet - Ford Truck Enthusiasts Forums)While there may be some enthusiasts who think this is normal behavior, that doesn't seem like what the average guy with a truck is doing with his spare time.
Did you guys all do that, or is the TPMS not going off, or do you just ignore the light and the beeping noise?
I like the idea of getting better tire wear, because I only get about 2/3 the life that I used to get on my previous truck that ran at 35 psi. Plus I drive a good bit at about 20,000 miles per year, plus-plus my winter tires don't have TPMS sensors so the truck dings every time I start it all winter. But the TPMS is an issue and I also trailer every week or two, so even though it would be nice to have lower pressure for daily driving, it would be a pain to be pumping it up and down every week or two.
If it was a few buttons on the console it would be one thing, but the stuff at that link seems like quite a process in order to reprogram it.