how high should we go? tire pressure that is...
Originally Posted by livvie
Your 1-3mpg increase due to overinflating tires seems a bit high.
Originally Posted by tbaleno
...than dent or fracture my aluminum rims because the tire flexed too much.
This past November, I had an accident in my 2005 Prius. Per the suggestions in the Prius Yahoo group, I was keeping my tires at 42 front, 40 rear.
The first blast of winter was on Nov. 16, and I was driving with my wife back from dinner downtown. She asked if the road was bad, and I said I hadn't felt any slippiness yet, but was driving with extra caution.
As I reached the top of the hill in my neighborhood, the change in elevation was just enough to put us below freezing. I glanced at my speedometer, and was going 20 in a 35 zone. Then I looked ahead again, and saw a car ahead had just spun sidewaysand was stopped across my lane. I put on my 'antilock' brakes and started to slide. It was an absolute sheet of fresh ice (no salt had been put down yet). I had at least three times the distance I would have normally needed to stop, but had that helpless feeling as essentially nothing happened.
I may have been going 10 mph when I hit the other car.
Damages = $3400. The Prius is an expensive beastie to fix, even with relatively modest front end damage (The radiator had to be replaced).
In retrospect, I wonder if I would have been able to stop if I were running at, say, 32 psi? I can't prove it, but if so, that was the most expensive gas I ever saved!
The first blast of winter was on Nov. 16, and I was driving with my wife back from dinner downtown. She asked if the road was bad, and I said I hadn't felt any slippiness yet, but was driving with extra caution.
As I reached the top of the hill in my neighborhood, the change in elevation was just enough to put us below freezing. I glanced at my speedometer, and was going 20 in a 35 zone. Then I looked ahead again, and saw a car ahead had just spun sidewaysand was stopped across my lane. I put on my 'antilock' brakes and started to slide. It was an absolute sheet of fresh ice (no salt had been put down yet). I had at least three times the distance I would have normally needed to stop, but had that helpless feeling as essentially nothing happened.
I may have been going 10 mph when I hit the other car.
Damages = $3400. The Prius is an expensive beastie to fix, even with relatively modest front end damage (The radiator had to be replaced).In retrospect, I wonder if I would have been able to stop if I were running at, say, 32 psi? I can't prove it, but if so, that was the most expensive gas I ever saved!
Originally Posted by memiller
This past November, I had an accident in my 2005 Prius. Per the suggestions in the Prius Yahoo group, I was keeping my tires at 42 front, 40 rear.
The first blast of winter was on Nov. 16, and I was driving with my wife back from dinner downtown. She asked if the road was bad, and I said I hadn't felt any slippiness yet, but was driving with extra caution.
As I reached the top of the hill in my neighborhood, the change in elevation was just enough to put us below freezing. I glanced at my speedometer, and was going 20 in a 35 zone. Then I looked ahead again, and saw a car ahead had just spun sidewaysand was stopped across my lane. I put on my 'antilock' brakes and started to slide. It was an absolute sheet of fresh ice (no salt had been put down yet). I had at least three times the distance I would have normally needed to stop, but had that helpless feeling as essentially nothing happened.
I may have been going 10 mph when I hit the other car.
Damages = $3400. The Prius is an expensive beastie to fix, even with relatively modest front end damage (The radiator had to be replaced).
In retrospect, I wonder if I would have been able to stop if I were running at, say, 32 psi? I can't prove it, but if so, that was the most expensive gas I ever saved!
The first blast of winter was on Nov. 16, and I was driving with my wife back from dinner downtown. She asked if the road was bad, and I said I hadn't felt any slippiness yet, but was driving with extra caution.
As I reached the top of the hill in my neighborhood, the change in elevation was just enough to put us below freezing. I glanced at my speedometer, and was going 20 in a 35 zone. Then I looked ahead again, and saw a car ahead had just spun sidewaysand was stopped across my lane. I put on my 'antilock' brakes and started to slide. It was an absolute sheet of fresh ice (no salt had been put down yet). I had at least three times the distance I would have normally needed to stop, but had that helpless feeling as essentially nothing happened.
I may have been going 10 mph when I hit the other car.
Damages = $3400. The Prius is an expensive beastie to fix, even with relatively modest front end damage (The radiator had to be replaced).In retrospect, I wonder if I would have been able to stop if I were running at, say, 32 psi? I can't prove it, but if so, that was the most expensive gas I ever saved!
Thanks for sharing your story.
It may be of Help to those that live in the States that have Ice and Snow in the Winter Months.
Terry
No. Tire preasure would not have made a difference. Neither would having a 4wd car or any kind of traction control. If you hit a patch of ice there isn't too much you can do to stop the car.



