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#1
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how to test rolling resistance
With so many eyes on fuel economy, how come they don't publish rolling resistance specs for tires? I assume it can be measured if they talk about it as a design characteristic.
Sixto 87 300D |
#2
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Quote:
Not publishing the findings also removes liability if the findings don't match with real world numbers.
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1987 560SL 85,000 miles Meet on the level, leave on the square. Great words to live by Were we directed from Washington when to sow and when to reap, we should soon want bread. - Thomas Jefferson: Autobiography, 1821.
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#3
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Yes but they have normalized wear ratings. Seems like a reasonable request rather than regulating the use of descriptors like eco and green.
Sixto 87 300D |
#4
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IIRC, one of the car test mags, years ago, published a graph with each road test. They plotted acceleration and coast from speed curves.
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1982 300SD " Wotan" ..On the road as of Jan 8, 2007 with Historic Tags |
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