More Miles per Gallon (400 miles per tank)!!!!

[lflaco]

Great! I see that our vehicles with the proper maintenance and care will yield great MPG. But FYI the vehicles are set with the speedometer/odometer to that vehicle configuration, ie engine, transmition, diff, tire size, to get the most accurate mileage, meaning changing the size of the tire to a smaller one will spin faster telling the vehicle is going more miles than it ussually goes, so in the long run it will say an innacurate reading. Somewhere on the net, there's a tire/speed calculator that will tell you what is your actual speed, which in the long run will affect the odometer reading, just look into it.

[TiAgX5]

Originally Posted by lflaco

Great! I see that our vehicles with the proper maintenance and care will yield great MPG. But FYI the vehicles are set with the speedometer/odometer to that vehicle configuration, ie engine, transmition, diff, tire size, to get the most accurate mileage, meaning changing the size of the tire to a smaller one will spin faster telling the vehicle is going more miles than it ussually goes, so in the long run it will say an innacurate reading. Somewhere on the net, there's a tire/speed calculator that will tell you what is your actual speed, which in the long run will affect the odometer reading, just look into it.

Well aware of tire diameter, the V speed rated 255-55-18s are the OE wheels that came on my truck and are the wheels I mentioned on the 580 miles per tank trip. My staggered setup is actually SLIGHTLY larger in diameter then the OE wheels resulting in several fewer revs per mile, this would actually show a lower OBC MPG then actual MPG if the OBC was calibrated perfectly. I GPS log and calculate MPG on long trips, this is more accurate then the OBC data.

[joemorelli99]

Yep...Orlando to Deerfield Beach & back on ONE TANK (410 miles) in my 4.8is. Best gas mileage of any vehicle I ever owned - including a straight 6 Jeep Grand Cherokee.

[Sweep_the_Leg]

I guess I was spoiled getting 22-23 MPG (and 300 lb./ft. of torque) from my 2007 335i before I traded it in on my 4.8is. The first few fillups have been a little painful, but worth it for the extra cargo room (the reason for the trade). I'm averaging about 14-15 MPG with mostly city driving. Looking forward to seeing what I can get on my first long road trip (most likely to Grandma's house).

[epdarks]

E53s did not have diesel in the US, E70s do have a diesel option.

[mysweetx5]

Great job lFlaco!!!
However Your baby had to be running smooth and excellent on MPG
with all this great tune-up: fluids changed, New spark plugs, fuel filter & more.
It was such a very good job for your trip also to keep your car running smoothly.

I'm planning on doing a similar job like yours on my (X5 4.4i) because the MPG
isn't quiet working the way it should on my car, because driving on the highway
shows: 8.5MPG & city shows: 8.4MPG. And I'm thinking this could be related due
to a faulty oxygen sensors, because the car doesn't seem to be consumed that much gas.

[BigBlack48is]

I might as well toss in my 2 cents here...

2006 X5 48is on 20's in the summer, I get 22 MPG @ 70 mph ( which is actually 67 according to GPS ). In the winter on the 18's I get 23-24 @ 70 mph. It does surprisingly good IF.. I can keep my right foot off the pedal and use the cruse

[wagner.a.charles]

Man! I WAS jealous of everyone's 4.4's and 4.8's but after reading this I don't mind my 3.0. Getting about 18 mpg around the city and almost 500 miles on a tank is nice! Not being able to pass somebody in the fast lane, not so nice

[TerminatorX5]

I just made some interesting observation:

My mileage consumption has improved - when I bought the car, i saw the MPG from 12 to 17 with occassional 19 MPG... mostly it was in the 16 MPG...

Right now I am observing more of the 19 MPG on a steady basis, starting about from June on... I do not know if I should contribute this improvement to change in driving habits (not really, i still drive the same), change in fuel composition (but last summer there was not such a difference), or the fact that I did a few oil changes rather with short interval (approx. 5000 miles apart) along with using Liqu-Molly engine flush before the oil change and then dumping in 12 fl.oz. of AUTO-RX into the engine, and also replacing the torn CCV membranes, in effort to reduce the blue smoke... I do get the blue smoke on EXTENDED idling, but not on the short ones, like the traffic signals or the traffic jams that are moving... which is also an improvement.

what do you think?

[bcredliner]

Originally Posted by TerminatorX5

I just made some interesting observation:

My mileage consumption has improved - when I bought the car, i saw the MPG from 12 to 17 with occassional 19 MPG... mostly it was in the 16 MPG...

Right now I am observing more of the 19 MPG on a steady basis, starting about from June on... I do not know if I should contribute this improvement to change in driving habits (not really, i still drive the same), change in fuel composition (but last summer there was not such a difference), or the fact that I did a few oil changes rather with short interval (approx. 5000 miles apart) along with using Liqu-Molly engine flush before the oil change and then dumping in 12 fl.oz. of AUTO-RX into the engine, and also replacing the torn CCV membranes, in effort to reduce the blue smoke... I do get the blue smoke on EXTENDED idling, but not on the short ones, like the traffic signals or the traffic jams that are moving... which is also an improvement.

what do you think?

If it were me I would expect I hit the wrong button on the calculator.

I'm going to do all those things you did every month. By my calculations I will be getting 32.2 mpg in a year.