Gas mileage on C55?
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my 996 averages 20mpg round town - cruises at 38mpg at 60-70 and averages 30mpg with allround driving - has a range of 400 miles on roughly 55 litres-it matches my ClK 200k
Never thought my C55 would get considerably worse gas mileage then my old 405hp Z06! The C55 could really use a 6sp manual or at least the 7 sp auto trans from the SLK55.
Can some one accurately convert these to gallon/mile for me?
tks

oh, i am sorry, did not see your post correctly, you want gallon/mile?
that would be 0.0646258gpm
Last edited by joegrecoant; Apr 6, 2006 at 05:09 PM.

oh, i am sorry, did not see your post correctly, you want gallon/mile?
that would be 0.0646258gpm

Great ! Thanks !
My car reads 15.5 L/100km for the whole ~28000km
My car reads 15.2 L/100km for past 4000km
My best trip is 12L/100km ( guess this is = 12mpg?)
edit: and even my new R350 runs at 15L/100km
1 gallon = ~3.75L
1 mile = ~1.62km
So 12L/100km = ~19.3mpg your best.... 14.9mpg your whole 28000km.
(despite our fuel price of course
)
the best i've had (taking my reading from the trip computer) was 26 mpg, this was mostly motorway driving at 60/70 mph on a journey of approx 50 miles, i think that a longer journey would have seen it go up a little more but not by much




