Gas Mileage
I averaged 26.7 mph to Atlanta but had some stop and go traffic. The way back was wide open and I averaged 26.9. Per the trip computer I averaged 71 miles per hour for the return trip which is a pretty good pace for 850 miles.
What does everyone else get for a long trip?




I averaged 26.7 mph to Atlanta but had some stop and go traffic. The way back was wide open and I averaged 26.9. Per the trip computer I averaged 71 miles per hour for the return trip which is a pretty good pace for 850 miles.
What does everyone else get for a long trip?
The true MPG you get only by calculating from miles driven and gas you put in the car.
On hwy my E550 gives me around 24-25 mpg actual calculated from the miles I drive and fuel l I put in it.
this is about 15% higher than the window sticker rating of 27mpg highway.
Still not bad for a V8 and compared to the 18 MPG we have gotten on the trip in my wife's Escalade it is great.
Carefully measured at the pump (NOT the computer)
Trip 1: Mid June. 1350 miles, in the mountain west; central NM, through CO, UT, ID, OR to eastern WA. Virtually all road miles, some Interstate, except for meals and overnight stops. Segments avg 425 miles between fillups. Cruise was 70mph+. 27.84mpg
Trip 2: 1366 miles, reverse of the above. 27.17mpg.
Bottom line: on cruise control (Distronic) the V8 simply loafs along, even with big elevation changes.
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I might add to the message above: There were a couple occasions, out on the desert, miles of visibility ahead, passing a slow semi --- a little pressure on the gas, get pushed back in your seat, suddenly the truck is way behind you, and you are doing 110mph! Feels like 60. NO DRAMA! Hooray for the 550!
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I might add to the message above: There were a couple occasions, out on the desert, miles of visibility ahead, passing a slow semi --- a little pressure on the gas, get pushed back in your seat, suddenly the truck is way behind you, and you are doing 110mph! Feels like 60. NO DRAMA! Hooray for the 550!




Sorry for the mpg facts but I KNOW you smile every time you ask your 550 to go, I do...



