Do hubcaps helps? I pulled a set yesterday --- 14 inchers.

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daw_two
Germantown, TN

Links:
Sold last car --- 05/2012 1984 300D Light Ivory, Red interior
Cluster Needles Paint
New Old Stock (NOS) parts

Past:
3/2008 1986 300SDL "Coda"
04/2010 1965 190D(c) "Ben"
& many more

smooth and flat are key to an undisturbed air flow.

I can probably idle around the block of the fuel station in 4th gear and get 40mpg too.

Once and I did it over a tank of fuel, not just 2 gallons. My results are accurate since the next tank fills did not show below average to compensate if I had made a mileage or math error.
33.97
28.83
28.13

It is what it is.

I believe the fuel measurement was pretty accurate and that I can duplicate it any time I choose to drive 55 on the highway. I gave all the facts that I have and you are free to conclude whatever pleases you.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

Please do, with more than 2 gallons though.