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Old 08-16-2013, 03:53 PM   #1 (permalink)
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Join Date: May 2011
Location: Toronto
Posts: 264

gueff - '19 Mercedes Benz A250 4MATIC AMG
90 day: 30.55 mpg (US)
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higher engine load ok for hypermiling?

Is it ok to increase engine load if my air fuel ratio stays the same when accelerating? My car stays stoich under 2400rpm below ~95% Manifold Pressure (city driving). However on the highway if i exceed 80% load because of higher RPMs car goes open loop instantly. I have been targeting 70% MAP/LOD and shifting at 2500rpm with great results, thats usually faster than flow of traffic, but i like accelerating and changing gears quickly sometimes.

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