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Old 12-16-2010, 07:09 AM   #8 (permalink)
JWY
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Join Date: Feb 2004
Location: Ft. Lauderdale
Posts: 538
The Cummins QSB-5.9 heavy duty 225hp twins have the same estimated range and consumption when using one engine at a time which is the recommended mode under normal conditions. Using both engines simultaneously increases consumption by about 20-30%.

Judy
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