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Study * USA - Bigger engines can boost fuel economy
Slightly “over-specifing” engines and selecting a low gear ratio improves fuel economy by 0.3 MPG or around 5%
USA -Fleet Owner, by Sean Kilcarr -Jul 13, 2007: -- An intensive 18-month telematics-based study of grocery, manufacturing, fuel, and retail truck fleet operations indicates that slightly “over-spec’ing” engines and selecting a low gear ratio improves fuel economy by 0.3 MPG or around 5%. That equates to an approximate savings of $2,000 per tractor per year, assuming 100,000 annual miles... Conducted by PHH FirstFleet, the study determined that the major killer of fuel economy is driving for long stretches at high output torque ratings... Increasing engine torque ratings, however, provided a simple and effective method to decrease time spent in the high output torque ranges and thus improve fuel economy...
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posted by Unknown @ 11:29 AM
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