I keep my tires at 50 lbs (rated at 42)
Under inflating tires has been causing the SUV roll overs.
Over inflating tires has been causing better gas mileage.
1 inch space between tires sounds awfully close, my 1 ton dodge dually had 4 inches space,that routinely got rocks stuck between the two i'll add.
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Save gas
Ride a Mtn bike for errands exercise entertainment and outright fun
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