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Old 02-11-2006, 07:32 PM   #1 (permalink)
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A local tire dealer usually inflates my tires to about 40 psi. The placard in my 02 Taurus says the pressure should be 30 psi front and rear. What do you guys use?
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Old 02-11-2006, 07:45 PM   #2 (permalink)
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Use what Ford says to use - 30 psi. Your tire dealer is an idiot for overinflating tires that much.
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Old 02-11-2006, 08:03 PM   #3 (permalink)
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Interesting... I'm pretty sure my 02 placard says 32 psi... Gonna have to look into that. Anyway werd to Hokie--do what Ford says.
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Old 02-11-2006, 08:19 PM   #4 (permalink)
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They do that for ride quality. I inflate mine to the max on the sidewall of the tire.
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Old 02-11-2006, 09:09 PM   #5 (permalink)
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Quote:
Originally posted by Millermagic@Feb 11 2006, 09:19 PM
They do that for ride quality. I inflate mine to the max on the sidewall of the tire.


The higher the pressure, the better the handling and the harsher the ride quality. I personally run 36 psi front and rear. Usually a decent aftermarket tire will allow you to run 40+ psi.
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Old 02-11-2006, 09:21 PM   #6 (permalink)
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I've been a Technician for nearly 16yrs. now... I always set my tires & those of my customers at 35psi. I've found that 35psi. gives the best tire wear, handling, fuel mileage, & ride quality of all. The factory engineers are the idiots!!! They say Explorers/Rangers tires should be set at 25psi front, & 30psi rear. WAY too low for an SUV or pickup of any size... resulting in premature tire failure (the Firestones were fine... underinflation, & poor maintenance was the cause of the blow-outs, & roll overs!!!), poor fuel mileage & "wet noodle" like handling. Therefore I disregard the "specs" & always use 35psi.(except on full size pickups, or larger SUVs) It's worked great for me, try it out & see for yourselves. Most importantly keep up on yearly alignment checks, rotate tires EVERY 6k.mi. , & pay close attn. to balance.
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Old 02-11-2006, 09:42 PM   #7 (permalink)
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Quote:
Originally posted by Hillbilly.WV@Feb 11 2006, 08:32 PM
A local tire dealer usually inflates my tires to about 40 psi. The placard in my 02 Taurus says the pressure should be 30 psi front and rear. What do you guys use?
40 is too high as using too much torque on lug nuts.
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Old 02-11-2006, 10:50 PM   #8 (permalink)
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With respect to the tire inflation, by over or under-inflating the tires, you are decreasing the size of the patch of tire that is making contact with the road. Over-inflating causes the center of the tire tread to wear faster. Under-inflating the tires causes the outer edges of the tire tread to wear faster. Properly inflating the tire ensures that the tire makes even contact with the road. This isn't rocket science, just simple physics.

From the Goodyear website:



Frequently Asked Questions | Inflation

How much air should I put in my tires?
Proper inflation is the single most important part of tire care. The inflation pressure on the side of the tire is the MAXIMUM operating pressure. It is not necessarily the right inflation for your vehicle. Always use the inflation recommended by the vehicle manufacturer. You can find it in your owner's manual, posted on the edge of the driver's door, on a door post or on the inside of the glovebox door. Always check inflation when tires are COLD: when the vehicle has been driven less than a mile or one hour or more after driving. Use a good quality tire gauge. Note: It's natural for radial tires to have a slight bulge in the sidewall at their proper inflation pressure. Check or adjust inflation every few weeks, before any long trip or if traveling with a heavy load. And don't forget to check the spare. Your Goodyear retailer can answer any questions you may have about tire inflation.
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Old 02-11-2006, 11:09 PM   #9 (permalink)
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Old 02-11-2006, 11:11 PM   #10 (permalink)
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Here are a bunch of links where anyone can read about tires and tire safety:

Motorweek (PBS) - Pat Goss

Goodyear - Tire Inflation FAQs

National Highway Traffic Safety Administration - Tire Basics

Bridgestone-Firestone - TireSafety.com

Rubber Manufacturer's Association - Tire Safety

Cooper Tires - Tire Inflation Recommendation
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