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1337 · 03-15-2009, 03:26 AM

I've seen a few discussions about safe levels of overinflation and "hyperinflation."
(See

http://ecomodder.com/forum/showthrea...es-2522-5.html

http://ecomodder.com/forum/showthrea...es-2582-6.html

However, I have yet to see a thread about what ecomodders run in their tires. Please post how many PSI, what sort of tires, and how your inflation compares to the sidewall max.

In my Mazda, I run 48 PSI in the front tires (Michelin Harmony, rated at 44 PSI) and in the back, I run 42 PSI (some off-brand Hercules tires, with no rating listed).

I recently jumped to 48/42 from 45/38. Based on my last few tanks, I think it's likely that the extra few PSI helped my fuel economy.

03-15-2009, 03:26 AM	#1 (permalink)
1337 In hypermiler central Join Date: Jul 2008 Location: UC Berkeley Posts: 230 [SOLD] Highway Warrior - '00 Mazda Protege LX 1.6L Manual 90 day: 35.93 mpg (US) Basic Miata - '06 Mazda Miata Touring 90 day: 30.93 mpg (US) Thanks: 55 Thanked 6 Times in 3 Posts	How many PSI do you run in YOUR tires? I've seen a few discussions about safe levels of overinflation and "hyperinflation." (See http://ecomodder.com/forum/showthrea...es-2522-5.html http://ecomodder.com/forum/showthrea...es-2582-6.html However, I have yet to see a thread about what ecomodders run in their tires. Please post how many PSI, what sort of tires, and how your inflation compares to the sidewall max. In my Mazda, I run 48 PSI in the front tires (Michelin Harmony, rated at 44 PSI) and in the back, I run 42 PSI (some off-brand Hercules tires, with no rating listed). I recently jumped to 48/42 from 45/38. Based on my last few tanks, I think it's likely that the extra few PSI helped my fuel economy.