rlc323 wrote: .........He is constantly messing with the tires before they leave and then if one is at 37 and the others at 35 while driving he gets upset. He is driving the poor woman crazy with this thing.
...... Last weekend she said he just checked them once on a 140 mile round trip, and did not comment to her on the readings.
I understand how he feels! I am just getting used to the pressure read out with my new truck. I do check the pressure with a gauge prior to trips, but having the info on the dash I think is nice. I'd probably cycle through the info on the DCI every day at least once. However, having checked it with a gauge I would not get too concerned unless the pressure starts going down to under the cold setting I did at the start of the trip. I have VERY limited experience with the system since my truck has only 550 miles on it now.
Your dad will probably get tired of checking the pressure on the DIC, and as long as he cold-checks the psi he'll be fine. Heck, I used to drive myself nuts by checking the Average and Instantaneous MPG on the DIC on my 2004 Chevy!
Doug and Kathy
2008 Chevy 2500HD extended cab Duramax/Allison 4WD
2007 Crossroads Cruiser CF30SK
"Nuestra casa con buena vistas"
The DIC alerted me when my pressure dropped to 64 lbs (if memory serves correctly). Turns out I had a slow leak. I check the air pressure before every time I tow anywhere, or coming back. The DIC is just as accurate as the gauge I'm using (not a high dollar gauge).
adVentureMan wrote: Keith, I tend to trust your information after looking at your signature line! => "Keith J, Retired from GM Engineering"
Thanks Adventureman
Seeing as I was Manager of the group that was responsible for the labels on GM vehicles, including tire pressures, I have been down that road a few times!
Running tires at a substantially higher pressure than called for by the load on them will result in the center of the tire wearing faster than the edges.
The reverse is also true - lower pressure will wear the sides faster than the center.
The numbers I use are those recommended for the load on the tires, plus 5psi for my peace of mind. Not enough to cause a wear issue but enough to ensure they are not under-inflated.
Keith J, Retired from GM Engineering
2005 GMC Sierra 2500HD SLE 2WD/CC/SB/DA.
1999 Sunnybrook 27RKFS Fiver
Bilsteins, Line-X, Westin steps, Prodigy, Retrax, 16K Superglide, 5th-Airborne pin-box, Multi-vex mirrors.
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=> "Keith J, Retired from GM Engineering"
