Dealer Keeps Pumping My Tires to 40 psi....

[JFUSION]

I'm on my third visit to the dealer for an oil change and some warranty stuff, each time I leave the dealership I read the inspection data sheet that they attach to the invoice after I get home. I notice they always pump my tires up to 40 psi, I typically run them about 34 -35 psi, a couple psi higher than the recommended pressure.

On the inspection sheet there are some check-off boxes for the tire pressure section, one is for the recommended tire pressure and one is for a different tire pressure, they check off the one for a different tire pressure and put in the number 40 psi. I think 40 psi is the max tire pressure recommended for our tires (correct me if I'm wrong), I know it can help a bit with mileage but it is also easier to pick up nails and screws from what I've heard, and I am always around construction sites where such objects are plentiful on the roads.

I never get a chance to speak to the service advisor about it because I usually see it after I get home and I then forget to bring it up at a later time. I'll keep it in mind during my next visit. Any opinions on this ?

 

[Saik]

Did they hoist your vehicle up on a lift and do the tires in the air? 40 PSI is ideal for fuel economy. I currently have mine at 40 PSI and I have no problems at all

 

[blwnsmoke]

Max is about 50psi.. I run mine at 45 and have done so for 22,000 miles. No issues and all even wear.

 

[peterk9]

I'm on my third visit to the dealer for an oil change and some warranty stuff, each time I leave the dealership I read the inspection data sheet that they attach to the invoice after I get home. I notice they always pump my tires up to 40 psi, I typically run them about 34 -35 psi, a couple psi higher than the recommended pressure.

I never get a chance to speak to the service advisor about it because I usually see it after I get home and I then forget to bring it up at a later time. I'll keep it in mind during my next visit. Any opinions on this ?

The tire pressure specs are shown on the driver's side door frame and in the manual and should be 35 PSI. That is what is recommended and presumably what the vehicle is tuned for. Increasing or decreasing the PSI will compromise the handling of the vehicle. I read an article from Popular Mechanics wherein they declared increased gas mileage from overinflated tires to be a myth. http://www.popularmechanics.com/cars/news/4199963
In the end, it is always your choice but keep in mind there was a reason the manufacturer recommended a certain pressure. Also the psi should be checked with the tires cold.
Happy motoring.

Peter

 

[JFUSION]

Thanks for all of the replies, next time I'm in the dealership I'll ask them why they choose 40 psi over the recommended pressures. I tend to run about 2 psi over the recommended on most of my vehicles but not usually 5 over.

 

[peterk9]

Thanks for all of the replies, next time I'm in the dealership I'll ask them why they choose 40 psi over the recommended pressures. I tend to run about 2 psi over the recommended on most of my vehicles but not usually 5 over.

Everyone has their own thoughts on this subject, much like when to change oil. Just also keep in mind that the pressure also usually increases 1 psi for every 10 degree rise in outside temperature. I know that my dealer always checks them for the 35 psi setting and goes over the entire check list results each time I go in.
Good luck.

Peter