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4.8is Gas Mileage (Experiment)

With gas prices being what they are I figured I'd do a little experiment on my last trip and made this short vid. Drove from SA to Htown @ 70-75mph, no cruise.

https://youtu.be/b-pGBS40Vs0

Cliffs:

20.6mpg indicated (~19mpg calculated)
207.1 miles traveled
70-75mph through most of the trip (some sections of surface roads to and from destination)
82*F
Tires @ 36psi cold
Not flat, but not not mountainous terrain either
~129,500 miles on N62b48 that needs VSS

Quote:

Originally Posted by StephenVA (Post 1219426)

and...?

Nothing. Was just a way to pass time while on the trip. Figured I'd post it. Plus, we have a FL road trip upcoming so some context for the added diesel fuel expense with the F15 is nice.

Anyway, the N62 when driven gently isn't a terrible guzzler on the highway. My N52 powered wagon gets only a couple of MPG better.

What's the gearing? I would expect a little more out of it. However, I'm not familiar with BMW V8 power.

FYI Your gas is still cheap lol. I'm paying 2.00 a liter.

Quote:

Originally Posted by crystalworks (Post 1219425)

With gas prices being what they are I figured I'd do a little experiment on my last trip and made this short vid. Drove from SA to Htown @ 70-75mph, no cruise.

https://youtu.be/b-pGBS40Vs0

Cliffs:

20.6mpg indicated (~19mpg calculated)
207.1 miles traveled
70-75mph through most of the trip (some sections of surface roads to and from destination)
82*F
Tires @ 36psi cold
Not flat, but not not mountainous terrain either
~129,500 miles on N62b48 that needs VSS

Sent from my SM-G781W using Xoutpost.com mobile app

best I'm getting on the 4.6 is 18mpg, sounds about similar. But yeah, gas prices here are a LOT worse than stateside :D

That's pretty in line with what I'm getting on the highway.

Trip from LA > El Paso, TX (or slightly before where I broke down): 19.2 mpg @ 78-79 mph average
Trip from Colorado Springs > New Orleans: 19.6 mpg @ 78-79 mph average
Trip from New Orleans > Washington DC (broke down again and had to tow it home): 18.9 mpg @ 75-76 mph average

I'll report back if I ever make a successful road trip LOL

17 MPG combo here and 1.7 gals per mile on WOT

I hypermile at 13.6, that's why the 4.6 spends most of its time in the driveway.

^Ouch. I guess the 5spd makes a big difference. Actually, wonder how much of that difference is the trans vs. the engine evolution to the N62 and Xdrive system.

Quote:

Originally Posted by X5chemist (Post 1219437)

What's the gearing? I would expect a little more out of it. However, I'm not familiar with BMW V8 power.

You know, I have no idea. I don't pay attention to gearing in AWD vehicles. Only RWD manuals. :dunno:

Quote:

Originally Posted by puddinboo (Post 1219448)

FYI Your gas is still cheap lol. I'm paying 2.00 a liter.

Quote:

Originally Posted by guntherrex (Post 1219456)

best I'm getting on the 4.6 is 18mpg, sounds about similar. But yeah, gas prices here are a LOT worse than stateside :D

Yeah, you guys have it rough around the world. Gas hits $7+/gallon here (outside of California) and politicians heads might start to roll.

Looks like ~19mpg highway and 16-17 combined is the norm for these beasts then. Best tank I ever got out of it was when it was first purchased on the way back from Cali. 20.76mpg calculated and 495 miles on the tank.