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You folks are missing the point. A 50 mpg Prius uses 240 gallons to drive 12,000 miles in a year, at an annual cost of $960 (@ $4/gallon).
By comparison, a 20 mpg car, minivan, or truck uses 600 gallons to drive its 12,000 miles, at an annual cost of $2400.
If LRR tires give a 4% improvement, the Prius only benefits by saving 9.6 gallons/year, or $38.40. The 20 mpg car saves 24 gallons. or $96. That's in the double to quadruple dollar value savings range cited by Tire Rack. 25 mpg and 12.5 mpg examples would show double and quadruple the dollar value savings exactly, but the math figures are a bit less intuitive.
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Darrell
Boycotting Exxon since 1989, BP since 2010
Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac? George Carlin
Mean Green Toaster Machine
49.5 mpg avg over 53,000 miles. 176% of '08 EPA
Best flat drive 94.5 mpg for 10.1 mi
Longest tank 1033 km (642 mi) on 10.56 gal = 60.8 mpg
Last edited by SentraSE-R; 05-17-2013 at 03:52 AM..
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