: Correct tire pressure



oldworld
03-14-09, 11:28 PM
I have an 03 Escalade with factory 20 inch rims. I just purchased 4 new tires. The sticker on the driver door gives GM tire pressure for 17 inch tires.
I called my local caddy dealer, and asked why my truck has 20 inch rims and the sticker says I have 17 inch rims. Turns out that somewhere along the ownership trail, 20 inch factory rims were added to my vehicle. I asked the dealer what the pressure should be and he "thought" it should be at 35psi.
WHAT SHOULD THE PRESSURE BE SET AT............to be correct?
Thanks

jordan00escalade
03-15-09, 12:18 AM
Don't even know what size tires you have... example: 275/45/20

Look up the ESV Platinum though.. They come with 20 inch wheels, and if your tire sizes match you have your answer. Best I could come up with.

Tug Boat
03-15-09, 01:11 AM
The tire will tell you the maximum pressure, not the recommended pressure. I am running factory 20" rims at 30psi, same pressure as noted on the door of my EXT. I have Michelin LTX tires.

I will have to check my door sticker, as I think my EXT originally came with 17" rims. I don't think the recommended tire pressure changes when you change the rim size, but I am not a mechanic.

luxurylife33
03-15-09, 03:58 AM
most tires are between 30-35psi .... should tell u on the white sticker and owners manual

obxdiver
03-15-09, 05:52 AM
My 05 ESV Platinum came with 20's
The door sticker says I have 20's also, and to set them to 30psi
Goodyear Eagle P275-55-20

oldworld
03-15-09, 09:36 AM
THEY ARE DIRECTIONAL TIRES
275/55/R20

Like I said the service manager thought "35"psi.
Does everyone here leave them at 30 psi????
Any reason to do 30 over 35? Not as bumpy??

Let me know what you guys think

Arthur

mbovinet
03-15-09, 01:55 PM
The higher the PSI the longer the life on the tires within reason. It's also a smoother ride at lower PSI because the tire sidewals give a little more

oldworld
03-15-09, 06:40 PM
I just adjusted them down to 30.
I had the alignment checked a few days ago and they were at 45 psi. The truck was bumpy as hell. Much better now. Just don't want to wear the tires too soon with 30 psi.
I trust what everyone here says.
THANKS

Tug Boat
03-15-09, 09:53 PM
I checked my door sticker. My 20" rims were dealer installed, and they added a new sticker for the tire pressure. 30 psi it is!

Make sure to check your tire pressure often. Doesn't take much air loss to lower the pressure on a low profile tire.

oldworld
03-17-09, 10:10 PM
30 it is then.......hope they don't wear quick. never ran tires at 30psi in my life lol