Quote:
Originally Posted by California98Civic
So since last year when I installed my modified 15" MINI wheels for the weight, gearing, and aerodynamic gains, I have tended to do less P&G on the freeway. DWL is frequent, partly for engine cooling and power generation, too. I have a very tall VX/CX transmission with a 3.25 final drive, and with the 15-inch wheels I have freeway gearing as tall or taller than a 5MT G1 Insight. P&G is not as big a benefit as is it was. But that was when I was only planning for 55-60 MPG. Now that I'm trying to hit 70 and I have to drive the freeways I'm suddenly trying all kinds of stuff again. I want that 70 mpg "SRA" and a 70 mpg tank average.
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Closest I get to png on 55-70 mph speed limits is putting the car into neutral on down hills when then cruise gets below 50% on the bar. Brings mpg up a couple mpgs. That and drafting big lifted trucks, suvs, semis etc...