What tire pressure are you hypermilers using?
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Active Enthusiast
Joined: Nov 2005
Posts: 196
What tire pressure are you hypermilers using?
I'm running 44 - 45 psi. Anyone getting any benefit from running more?
How much more might this tire - wheel combo tolerate?
Anyone done coasting tests at higher psi?
MM
How much more might this tire - wheel combo tolerate?
Anyone done coasting tests at higher psi?
MM
Ridiculously Active Enthusiast
Joined: May 2004
Posts: 1,518
From: New England
Re: What tire pressure are you hypermilers using?
I ran a test on my HCH were I used +5psi over recommended and the other test I used MAX (tire) psi. My FE did not improve going to MAX. What did improve though was handling and braking. At the expense of feeling more bumps.
Hybrid and Ethanol Expert
Joined: Mar 2005
Posts: 3,616
From: All over the Central U.S.
Re: What tire pressure are you hypermilers using?
I'm Insulted! 
The Ford Escape Hybrid was the worlds first Hybrid SUV, and America's first Hybrid.
It came out in the Fall of 2004.
It comes in 2WD and 4WD.
BTW, I run 49psi in all tires, and get great coasting results, and would have to expect better results all around.
With 49 psi, and even a 1% slope, the FEH will roll a long, long ways.
-John
The Ford Escape Hybrid was the worlds first Hybrid SUV, and America's first Hybrid.
It came out in the Fall of 2004.
It comes in 2WD and 4WD.
BTW, I run 49psi in all tires, and get great coasting results, and would have to expect better results all around.
With 49 psi, and even a 1% slope, the FEH will roll a long, long ways.
-John
Ridiculously Active Enthusiast
Joined: May 2004
Posts: 1,518
From: New England
Re: What tire pressure are you hypermilers using?
Originally Posted by gpsman1
I'm Insulted!
The Ford Escape Hybrid was the worlds first Hybrid SUV, and America's first Hybrid.
It came out in the Fall of 2004.
It comes in 2WD and 4WD.
BTW, I run 49psi in all tires, and get great coasting results, and would have to expect better results all around.
With 49 psi, and even a 1% slope, the FEH will roll a long, long ways.
-John
The Ford Escape Hybrid was the worlds first Hybrid SUV, and America's first Hybrid.
It came out in the Fall of 2004.
It comes in 2WD and 4WD.
BTW, I run 49psi in all tires, and get great coasting results, and would have to expect better results all around.
With 49 psi, and even a 1% slope, the FEH will roll a long, long ways.
-John
Active Enthusiast
Joined: Jan 2006
Posts: 221
Re: What tire pressure are you hypermilers using?
HI,
Maybe this is a silly question but... Aren't you supposed to use the recommended tire pressure because that's what pressure the tires are designed to be at? Will the higher pressure lead to different (degraded) grip and handling and uneven tire wear (wear faster in the middle)? Will it present a higher failure rate?
Just my thoughts. I am all for improving milleage but I see a lot of talk in these forums about high tire pressure, coasting with the engine off etc. with little discussion on potential safety (IMHO).
Cheers,
Roch
Maybe this is a silly question but... Aren't you supposed to use the recommended tire pressure because that's what pressure the tires are designed to be at? Will the higher pressure lead to different (degraded) grip and handling and uneven tire wear (wear faster in the middle)? Will it present a higher failure rate?
Just my thoughts. I am all for improving milleage but I see a lot of talk in these forums about high tire pressure, coasting with the engine off etc. with little discussion on potential safety (IMHO).
Cheers,
Roch
Joined: Dec 2004
Posts: 2,161
From: Leominster, MA
Re: What tire pressure are you hypermilers using?
There could be any number of reasons a manufacturer recomends a tire presure. Remember the Firestone suv tires that were "bad" turns out ford recomended a preasure too low for that tire on that car. At least thats what I hear. They could recomend it based on load, noise, comfort, or any number of things.
