I recently upgraded my stock 18 to stock 20 inch wheels and I feel the tire pressure indicated on the vehicle door edge may not be applicable to 20 inch wheels . (33 PSI )

Can someone with OEM 20 inch wheels take a look at their RX door edge and confirm what is the required tire pressure .



Thanks

 

33 PSI on my door edge for 20 inch wheels.............

 

Thanks for checking and confirming

 

I run 38 on my fsport for best freeway mpg. Rougher ride but manageable.

 

I thought it listed the tire pressures for both size wheels on the door jamb.

 

 

35 PSI all year around for best mileage?

 

I was using 32 last summer and it was a little soft. Wear was even and normal. This summer I'm trying 34, a little firmer and so far wear looks about the same. Mileage at either gets me 22-24 mpg (Canadian) city. Michelin tires.

 

How did you manage to get 22-24 mpg in the city? Mine is about 15 mpg in the city.

 

That's why I put Canadian, as our gallon is bigger. US has 4 litres in a gallon, we have 5 litres in our gallon. Plus I'm pretty gentle on and off the gas.

 

Yup that's what I'm getting city driving too, I've got the Fsport AWD, using premium fuel. Gas mileage is pathetic honestly

 

When my RX was delivered to me, and when the dealer changed back to my summer wheels, the pressure was at 36. And I did not change it. The Michelin tires that came with my RX as well (Premier LTX - V102).

 

I prefer 35/36 psi year round as I have found this to provide the best balance among comfort, mileage and tire wear. Get about 24 mpg with 80/20 Highway/City mix of driving. Tires have been wearing normally.

 

My tires were also set to 36psi after 5K service. When the car was delivered by the same dealer, it was at 33psi. Not sure why the difference. In Texas, I would think with the heat, you would not want to set them at higher pressure.

 

The pressure varies less when using pure nitrogen instead of air which is composed of 78% of nitrogen.