Tire Pressure Cost me!

[sbergman27]

Originally Posted by BailOut

I coast farther and faster at 40 PSI than 32, at 50 PSI rather than 40, and at 60 PSI rather than 50.

So you claim. Claims are a dime a gross on the Internet. Pick any notion you like, however absurd. Google for a bit, and you'll find someone fervently advocating that viewpoint. A lot of the time it is apparent that they really believe it.

I'll buy that it is possible to measure a difference in coasting distance at pressures beyond the placard pressure. Here's a fellow who went to the trouble of trying to quantify it: http://tinyurl.com/ylokr46

I've not seen convincing evidence of that translating into real, measurable, fuel economy gains which justify the additional safety risks. The potential reduction in rolling resistance of inflation past the placard pressures is modest. And tire rolling resistance represents a fraction of total resistance. Fuel economy has again become a popular topic of research in the last year or so. Show me a controlled study that supports your position.

-Steve

Edit:

Here is an interesting thread regarding pros, cons, risks: http://tinyurl.com/ykejamh

Poster "CapriRacer" is, in my opinion, the one to watch in that thread. He's careful about what he says, says precisely what he means, and is in a position to know.