Quote:
Originally Posted by steveo126
i know this is a fuel econ forum but as a certified mechanic youre asking for a blowout. theres gonna have to be a compromise between safety and fuel economy if you value your life and those around you.
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Certainly.
But the rated max. psi is what the tyres are constructed and certified for.
Quote:
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in no way would i ever change the psi of my tires to other than what the factory recommends
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Well, on my Volvo those recommendations are blatantly wrong.
The recommended pressure for light loads - 2.3bar / 33psi - is way too low, leading to increased tyre wear on the shoulders, tramlining and an uncertain feel to the steering.
Originally, I started increasing the pressure to cure these handling and wear issues, as recommended by some folks on a car forum.
That brought me to 41 psi - still having the uneven wear issue, though reduced.
After joining ecomodder, I increased the pressure to sidewall max, 51 psi.
Guess what, the uneven wear is gone.
No alignment work has been done on the car.
I probably picked up a rubber fetish in my motorcycling years, as I fairly often feel the tyre temperature when checking them for signs of wear.
With the increased pressure and hypermiling, the tyres are a lot cooler than they used to be at lower pressures.
Yes, so much cooler that you can actually, unscientifically, feel it ...