Quote:
Originally Posted by niky
Pain in the arse to keep the cylinders deactivated... requires a veeeeery light foot... but if you can do it, I've seen people get up to 42 mpg by keeping the "ECO" light and the VCM light lit.
But that was at a steady 50-55. Don't know what you can expect at your standard 60 mph...
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Two words: Cruise Control.
Here's a trip we took last weekend, 288 miles round trip, cruise control set at 65mph the whole way. The southern half is pretty hilly, but northern half is almost flat. Built-in gauge showed 40.3 mpg, miles divided by gallons was 40.38 mpg. I think on pure flat roads, using cruise control at 65 mph would yield 45+ mpg.
Here's the elevation changes:
