My car manual recommends 30 psi and the tire maker has 44 psi on it. So far i kept to 30 psi and my car doesnt have great fuel economy, averaging 17 mpg in city and 23 highway; but now i am hear that increasing the pressure will greatly boost my fuel economy…is this safe? and what pressure between 30 and 44 would achieve a good balance of fuel economy without sacrificing safety?
Originally posted 2009-04-18 21:44:51.
No related posts.
{ 13 comments… read them below or add one }
always go by the tire manufacturers recommendation
The question you need to ask yourself is are you putting air in your car or in your tire..Hummmmmmm.
Are you sure you looking at the right numbers ? Ive never heard of a vehicle taking either of those tire pressures..
Usually cars take either 32 psi or 35…. unless you have a large truck or SUV… I would go by the tire markings.. Make sure your reading the right numbers… 44 psi does not sound right…either does 30 psi
Tire maufacturer.
44 PSI is the MAX allowable pressure. If you have loaded the tires to the max then you are using the wrong tire.
Basically, the amount of air that goes in the tires depends directly on the loading. The tire manufacturer has no idea what car you are using the tires on, they just give you the maximum safe pressure.
If you inflated to that pressure your tires won’t last very long. Al sway go by the car maker’s numbers.
Go by what the vehicle’s specified tire pressure is, as this is for your vehicle’s specifications. Go by the sticker usually found in the driver side door jamb. The tires on your vehicle allow various psi ranges according to many different vehicles that they can be mounted to.
tire manufacturers
look at the sticker on the door. 44psi is the max pressure that tire can take. too much pressure will cause the center tread to wear out faster. go buy the sticker on the drivers door or the divers door jamb
Any tire manufacturer will say the proper thing to do is go by the sticker inside the door. I dont see you having any significant gain in fuel economy from 30-44. Make sure your car is tuned properly, aligned properly, and all factory scheduled maintenance is done at each mileage interval, you will notice more from doing those things. And the 44 is max on most tires for the person that said they never heard of that.
well, first off, do you have manufacturer specified tires on your car? if there bigger than what your manual says, then you i would go by what the tire says. the cars manual assumes you keep the same sized tires on it from when it came out of the factory.
go with 35 lbs. and you will be safe, just remember the more air you put in the harsher the ride but it will help on gas mileage.
im a old tire guy and since the 70’s ive been running 5 pounds more and ive never had any problem with any of mine….. but really the max is better but it really depend on the car too cause tire are made for many types so it really up to you to watch how they wear…. i run 45 in all mine and 30 pounds is low for any car tire its never been 30 and your not going to get a lot of mileage but it does help….. check them monthly in the winter and sure 44 is just fine,,, good yr trained and still changing tires…. road service truck and tractors thro i still get a car every once in a while
The tire manufacturers recommendation is to go by what the vehicle manufacturer says. Go ahead, look on any tire makers web site and that is exactly what they say. The number molded into the sidewall of the tire is a maximum inflation pressure for that particular tire. It is a safety warning, not a recommendation.
The vehicle manufacturers recommendation provides the optimum combination of load capacity, wear, handling, braking, wet performance and economy.