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Old 05-04-2012, 01:49 PM   #8 (permalink)
Phantom
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Join Date: Jan 2010
Location: Independence, KY
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Blue Meanie - '02 Volkswagon Golf TDI
TEAM VW AUDI Group
90 day: 48.52 mpg (US)

Wife's car - '05 WV Passat TDI

Rudy - '94 Chevy C2500
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I think most of the reason is the air fuel ratio gasoline is 14.7lbs of air to 1lb of gas and propane is 15.67 to 1 so propane is burning one more pound of air.
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