2007-04-27 09:24:01 · 12 answers · asked by Steve C 2 in Cars & Transportation ➔ Maintenance & Repairs
For what vehicle? You could put that tire on 50 different makes/models of car and each will have a different recommended pressure.
Also, your tire isn't a "215/35ZR18" - you need to include the service description or you won't get an accurate answer. Is your tire a Light Load, Standard Load, or Extra Load capacity? Each has different inflation requirements. The complete size has to be one of the following:
P215/35R18 73_ (Light Load)
215/35R18 80_ (Standard Load)
215/35R18XL 84_ (Extra Load)
The inflation pressure you use will depend on which load capacity tire you have. At 35 psi for example the difference in load carrying capacity between the P-Metric standard load and the Extra-Load is over 250 pounds - or more than 1,000 pounds for all four tires on the car!!!!! The Standard Load tire at 35 psi is equal to the Extra Load tire at just 29 psi. Too much or too little pressure can be dangerous so these are important distinctions.
More information is needed, such as year, make and model of vehicle and the original equipment tire size complete with service description and recommended pressures, plus the complete size and service description of the 18's. not just the dimensions.
ASE Certified Automotive Service Advisor with 5 years experience in the tire industry
2007-04-27 10:51:42 · answer #1 · answered by Naughtums 7 · 2⤊ 1⤋
Anywhere between 30 and 36lbs/sq inch is fine. The precision of getting it exactly right is absolutely pointless. The bigger the car, the higher the pressure. 30 if you've been stupid enough to put those wheels on a Corsa or similar, 32 if on a small hatch like a Focus, 34 on a Mondeo sized car or 36 on a Mercedes S-class type car.
2007-04-28 11:02:42 · answer #2 · answered by Bealzebub 4 · 0⤊ 1⤋
It is NOT what's written on the sidewall of the tyre - that's just a test pressure, nothing whatsoever to do with its fitment to your car. It's frightening how much ignorance there is about this. I'd refer you to Mark_f's first paragraph.
2007-04-27 23:07:56 · answer #3 · answered by champer 7 · 1⤊ 0⤋
215 35r18
2016-11-09 03:49:59 · answer #4 · answered by ? 4 · 0⤊ 0⤋
Look on the side of the tire, the max pressure is there, fill to with in 5 pounds under the max.
2007-04-27 12:04:37 · answer #5 · answered by Anonymous · 0⤊ 3⤋
35 to 38 psi
2007-04-27 10:12:56 · answer #6 · answered by rcbremen 2 · 0⤊ 1⤋
every vehicles is different. sometime there is a sticker on the driver side of the door or gas door.. it will indicate what pressure it should be at.
2007-04-27 10:17:21 · answer #7 · answered by LEXUSRY 5 · 2⤊ 1⤋
have a look on the wall of the tyre they are usually on there
2007-04-27 09:48:09 · answer #8 · answered by Andy 1 · 0⤊ 2⤋
Mounted on what year/make/model vehicle?
2016-05-20 17:55:32 · answer #9 · answered by ? 3 · 0⤊ 0⤋
its written on the side of the tire
2007-04-27 09:32:15 · answer #10 · answered by malemute1 4 · 0⤊ 2⤋