4.8i Fuel Economy is HORRIBLE

[PhoenixM3]

I just want to give everyone fair warning that the fuel economy on my 2007 4.8i is terrible. The EPA estimates are way too high. I get around 11 - 12mpg in the city and 16 - 17mpg on the highway. All of my other Bimmers match their EPA ratings (which I expected for this one), but it is not even close. I have experimented with all different driving styles and I cannot get this to improve at all. Hopefully they come out with a computer update that corrects this a bit.

Fuel economy aside, I love this SAV. It drives far better than I expected.

[xdrive]

If I remeber correctly, it is still a bit better than the M5 on paper but it doesn't mean anything coz the M5 is one big drinker.

[nickwild]

Normally MPG will increase after the engine is broken in won't it?

My e46 m3 continues to get better and better gas mileage... 1st 5k miles I was around 12mpg now I'm at about 18-19 now at 18k miles.

[Curious Joel]

What'd you expect? It's a large V8 in a big, heavy car. EPA estimates are always way off. In my 4.4i I managed only about 16-18 with mostly highway. It's mostly driving style, city vs. highway miles, etc. Anyways, congrats on a new E70!

[Sterling 4.4]

My friend has a 650 and gets 21-22 MPG. I know it is a different vehicle, but that is quite as difference for the same engine.

[///MB]

Originally Posted by Sterling 4.4

My friend has a 650 and gets 21-22 MPG. I know it is a different vehicle, but that is quite as difference for the same engine.

Your friend must never hit the gas. lol.

My sticker claimed 13 city 17 hwy. I get more like 8 and 14.

[Trouties]

I got 21 MPG in my 4.8is coming back fromthe Sierras and I didn't go slow either

[B-Line]

I have a Porsche Turbo that is quoted at getting 30mpg.
Yeah, maybe if "where's the beef" lady is driving it..

B

[Fastbuck]

Originally Posted by PhoenixM3

I just want to give everyone fair warning that the fuel economy on my 2007 4.8i is terrible. The EPA estimates are way too high. I get around 11 - 12mpg in the city and 16 - 17mpg on the highway. All of my other Bimmers match their EPA ratings (which I expected for this one), but it is not even close. I have experimented with all different driving styles and I cannot get this to improve at all. Hopefully they come out with a computer update that corrects this a bit.

Fuel economy aside, I love this SAV. It drives far better than I expected.

Do you have the 20" rims? If so, the extra rolling resistance may explain the difference between the published and actual fuel economy.

[PhoenixM3]

Originally Posted by Fastbuck

Do you have the 20" rims? If so, the extra rolling resistance may explain the difference between the published and actual fuel economy.

I only have the 19's. I guess I expected the EPA ratings to be close because all of my other BMW's match their EPA ratings pretty well (and in some cases exceeded them).