Saturday, February 25, 2012
What size tires do I need for a 2003 Cadillac Deville DTS?
I need new tires for my 2003 Cadillac Deville DTS. The tires that are on it now are P225/60HR16, but when I look for the tire size it is supposed to have, it says P235/55HR17. Could the wrong size tires make them wear out faster? The car only has 45,000 miles on it and the tread is already worn thin.What size tires do I need for a 2003 Cadillac Deville DTS?The wrong size will not make the tire wear out faster but can cause problems with the car itself. They will change the way the speedo and odometer read, they also change the angle of the drive shaft. running with the tires not properly inflated will cause premature aging of the tires. Also problems with the alignment and suspension will cause your tires to meet an early demise. The tires you should have are 235/55/17What size tires do I need for a 2003 Cadillac Deville DTS?Well if the tires that are on the vehicle now are P225/60R16 97H then you have 16" diameter wheels. P225/55R17 97H tires which require 17" rims clearly are not going to work. The 17's were an option on the vehicle and one for which your particular car was obviously not fitted. Be thankful because the cost goes up considerably with the 17's.
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The 2003 Cadillac DTS Only came with 17" wheels. There were 3 different options: 8 lug 7 spoke armor ready heavy duty option vented, which only came on government vehicles, Hurst, or limo package cars. Then there was the high performance vented 7 spoke directionally mounted wheels, found only on the cars with all the goodies. Then there were the regular DTS 7 spoke vented wheels. These were found on the lesser powerful 300 horse DTS, with non reinforced floors. These look almost identical, except they are non directional, and the face is flatter instead of curved. Regardless of which option, the tire size is 235/55/17 97h or higher. Contrary to what was said in the last post, the drive axle angle is not affected by tire / wheel size, the suspension will always sit in the same position. That knuckle head doesn't know what he is talking about. Wearing prematurely CAN be due to tire size, especially if you are using Michelin or Goodyear tires. Only 2000 model year DeVille and DHS came with 225/60/16. In the latter years, the rims were casted to be 1/4 inch wider. There is a Cadillac specific tire size: 235/60/16. If you are wearing on both outside and inside edges and on all 4 corners respectively, then ditch the 225's for a good set of 235's I recommend Goodyear RSA. And keep at least 39 psi in your tires. Don't use tires rated for less than 44. Cadillac DeVille and Seville models are simply too heavy. If your alignment is good, even if you are an aggressive driver, you will get at least 60,000 miles out of a set. Also, tires on Cadillac Seville and DeVille models MUST be road force balanced with LIP weights, l recommend every 6000 miles, to avoid vibration. These cars are very sensitive to wheel balance and even 1/4 ounce off and you will feel a strong shake from 55-70 mph..... Which will ruin your complete suspension, including your power steering rack.
ReplyDeleteI drive very aggressive, and my car sees 140-150 mph, hard starts, stops, and corners on a daily basis, but l still get 60,000 out of my tires with only one rotation. Eagle ASA tires. Are the best performance in corners and stopping I've seen so far. Road noise is low, but ride comfort goes down a bit. If you're the type to hang a corner or two, go with them, otherwise for comfort with cruises, go for the Michelin tire recommend by Cadillac. You can't go wrong.
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