Gl350 gas milege
MBWorld Fanatic!
Joined: Nov 2007
Posts: 1,425
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From: Minnesota
2015 Ram 2500, former 2013 GL350, 2007 GL450
We are in the heart of winter here in Minnesota. I've had my GL350 since Halloween so most of it has been with winterized diesel. I believe that impacts mileage a bit.
I think my worst tank has been a little over 22mpg. I had a trip last fall where I got about 28mpg.
I don't seem to keep how far I've went on a tank in my brain, and I typically refuel before it gets too low for condensation purposes. But I'm sure you could easily go 600 miles on a tank.
I'll be curious to see how my GL does in warmer weather with un-treated diesel in a few months.
I think my worst tank has been a little over 22mpg. I had a trip last fall where I got about 28mpg.
I don't seem to keep how far I've went on a tank in my brain, and I typically refuel before it gets too low for condensation purposes. But I'm sure you could easily go 600 miles on a tank.
I'll be curious to see how my GL does in warmer weather with un-treated diesel in a few months.
Super Member
Joined: Jan 2012
Posts: 599
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From: Maryland
2022 E450 Prior:2021 S580 2012 E350BT, 2013 GL350BT, 2009 ML320BT, 2006 E320CDI, 1987 260E
Only have re-fueled once and didn't do the calculation yet but will check back in. I was over 500 miles still showing over 1/8th if I remember correctly. This was mostly stop/go driving in the cold. 600+ miles should be easy I would imagine but will report back when I have facts.
Being below freezing for 5 days now has really had an impact on my E diesel. Really doesn't seem to be efficient until operating temp is reached...
Being below freezing for 5 days now has really had an impact on my E diesel. Really doesn't seem to be efficient until operating temp is reached...
Junior Member
Joined: Sep 2012
Posts: 57
Likes: 1
2013 GL350. BMW 335. 2014R1200RTW
Over the first 950 miles mine has averaged 20.9 BUT 300 of that was pulling a 6500 lb trailer, which it did quite well. A 250 run of mixed driving just did 27.3 so I'm delighted to say the least. Just got the GL after a QX56 and I'm very happy with the change.
Super Member
Joined: Jan 2012
Posts: 599
Likes: 6
From: Maryland
2022 E450 Prior:2021 S580 2012 E350BT, 2013 GL350BT, 2009 ML320BT, 2006 E320CDI, 1987 260E
Over 949 miles 20.4 MPG calculated using fill up method and odometer reading. May not sound that impressive but I am actually very pleased. Of the 949 miles probably only 150-200 have been highway, the rest stop and go in the suburbs. Also many of these miles were incurred in 2 mile trips to daycare or just down the driveway to get mail or to the grocery down the street, in freezing temperatures when the engine got no where near operating temperature, which is not efficient on the diesel.
So looking forward to getting some real roadtrips in soon and will report back. Summer diesel should help as well. As a comparison, our 2009 ML BTC would dip into the high teens in similar driving conditions.
So looking forward to getting some real roadtrips in soon and will report back. Summer diesel should help as well. As a comparison, our 2009 ML BTC would dip into the high teens in similar driving conditions.
Junior Member
Joined: Sep 2012
Posts: 57
Likes: 1
2013 GL350. BMW 335. 2014R1200RTW
Wife made a 300 mile yesterday, mostly highway....350 showed 29.4 for that trip....next fill I'll get a good fill/calculate number and see how accurate the computer is. Very impressed!
Junior Member
Joined: Feb 2013
Posts: 66
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BMW M5
Did a 6.5 hour run this weekend from New York City to Hershey, PA and back with wife and two kids and luggage for three women. Burned only a half tank for a 6.5 hour trip. Incredible.
I was hovering at 28mpg at 65mph no cruise control (CC) on the way there and 26.5 on the way back CC set at 65. Interesting difference with and without CC on.
I was hovering at 28mpg at 65mph no cruise control (CC) on the way there and 26.5 on the way back CC set at 65. Interesting difference with and without CC on.
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Junior Member
Joined: Nov 2013
Posts: 17
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2014 GL350, 2008 535i
Over the first 6500 miles, I'm averaging just over 23mpg. About 5000 of that is city driving. Took a 440 mile round trip to see the in-laws for Easter and averaged 28.5mpg - made it back with a little over 1/4 of a tank to spare.
Been very, very pleased with the diesel so far.
Been very, very pleased with the diesel so far.
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MBWorld Fanatic!
Joined: Jan 2014
Posts: 1,055
Likes: 355
From: USA - Minnesota
2014 GL350
From outside of Omaha to outside of Minneapolis with non-premium truck stop fuel.
(Less than 2000 miles on truck at the time, so hardly a "broken in" diesel. Average speed was low due to multiple stops for diaper changes with engine idling.)
Last edited by cadetdrivr; Aug 5, 2014 at 11:41 PM.
Junior Member
Joined: Feb 2013
Posts: 66
Likes: 0
BMW M5
That said I would not put the no name truck diesel in the GL in PA. Luv fuel, US gas etc.
MBWorld Fanatic!
Joined: Jan 2014
Posts: 1,055
Likes: 355
From: USA - Minnesota
2014 GL350
I should have clarified that it was the only "branded" fuel I could find at the time (Phillips), but it wasn't the premium diesel I try to feed the 350. I was just excited to try my first tank of non-bio blend.
Even with only 3500 miles on the truck now, it's surprising how much of a difference different fuels make with engine NVH. The 350 clearly likes the "good stuff."
Last edited by cadetdrivr; Aug 6, 2014 at 04:15 PM.
MBWorld Fanatic!
Joined: May 2009
Posts: 1,850
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From: New York
2025 Range Rover, 2022 BMW M850 , 2017 MB E400 Coupe
Over the first 6500 miles, I'm averaging just over 23mpg. About 5000 of that is city driving. Took a 440 mile round trip to see the in-laws for Easter and averaged 28.5mpg - made it back with a little over 1/4 of a tank to spare.
Been very, very pleased with the diesel so far.
Been very, very pleased with the diesel so far.
MBWorld Fanatic!
Joined: Nov 2007
Posts: 1,425
Likes: 2
From: Minnesota
2015 Ram 2500, former 2013 GL350, 2007 GL450
Fuel economy a better term?
I typically get 23-24 mpg for a tank. I have very little stop and go traffic in my travels. I have seen 27-28 mpg on some trips with favorable conditions (weather, temp, wind, terrain, speed).
I haven't yet been able to assess the impacts of biodiesel, we're at 10% now in Minnesota.
Junior Member
Joined: Sep 2013
Posts: 57
Likes: 6
GL 350
Mileage
The mileage I get on the GL has varied from 29-26(highway driving, moderate 55-60 mph speeds) to 24-25 (higher speeds--65+, with a roof rack loaded) to 17-20 (pulling a U Haul 5 x 8 trailer that was loaded at 55+ speeds--mileage dropped in a hurry when the speed went up). Generally speaking, best mileage is moderate highway speeds without items such as roof rack, worst mileage is startup driving with a trailer. Miles per tank is something I don't try for, my credit card generally slaps a 75 to 80 dollar limit of fuel purchases, so a nearly empty tank runs into this limit.
Junior Member
Joined: Jan 2013
Posts: 16
Likes: 0
From: Canmore, Alberta
GL 350
350 fuel economy
Interesting question - and interesting answers. We live (by all accounts) in the middle of nowhere - ask anyone. We drive a day before we actually start our trips.
Our first few months experience has been great - we got over 1200 km per tank (over several tanks) before the indicator went on in one long haul to the US and back - and, one ethereal day's drive in the Canadian Rockies we drove a full day with the eco calculator giving us 6.5 l/100 km! wow. must have been the altitude, relative humidity or something - but, that was one spectacular day.Now at 12,500 on the clock, we're getting a solid 8.4 on average and 10.2 around town.
This thing was built for the road and given our travel plans over the next year, that's how we're going to use it. I can repost after the East Coast run.
BTB, scanning the net there is a huge, well, in a teapot, argument regarding the use of premium diesel. One camp says that its a price grab and the only difference is a few cleaners that you don't really need, another says stay away because MB doesn't recommend it, others seem to insist that its worth extra money. I've run diesels since the mid-70's - the fuel is so much better now but it seems to me that once the engine is warm, it just keeps turning and anything "premium" would just be wasted. Any collective wisdom out there?
Our first few months experience has been great - we got over 1200 km per tank (over several tanks) before the indicator went on in one long haul to the US and back - and, one ethereal day's drive in the Canadian Rockies we drove a full day with the eco calculator giving us 6.5 l/100 km! wow. must have been the altitude, relative humidity or something - but, that was one spectacular day.Now at 12,500 on the clock, we're getting a solid 8.4 on average and 10.2 around town.
This thing was built for the road and given our travel plans over the next year, that's how we're going to use it. I can repost after the East Coast run.
BTB, scanning the net there is a huge, well, in a teapot, argument regarding the use of premium diesel. One camp says that its a price grab and the only difference is a few cleaners that you don't really need, another says stay away because MB doesn't recommend it, others seem to insist that its worth extra money. I've run diesels since the mid-70's - the fuel is so much better now but it seems to me that once the engine is warm, it just keeps turning and anything "premium" would just be wasted. Any collective wisdom out there?
MBWorld Fanatic!
Joined: Nov 2007
Posts: 1,425
Likes: 2
From: Minnesota
2015 Ram 2500, former 2013 GL350, 2007 GL450
Junior Member
Joined: Jan 2013
Posts: 16
Likes: 0
From: Canmore, Alberta
GL 350
Middle of Nowhere
Well, that is true. Also world class deer hunting all around the area and if you like fishing -- well, for many species -- it just doesn't get any better. I'm a flyfisher and there are a couple of places where the grayling fishing is just outstanding. Beyond excellent.
Anyway, if you know where Skatch actually is - the Saskatoon to Fargo, ND before the fuel indicator light went on will be more impressive.
Anyway, if you know where Skatch actually is - the Saskatoon to Fargo, ND before the fuel indicator light went on will be more impressive.
MBWorld Fanatic!
Joined: Nov 2007
Posts: 1,425
Likes: 2
From: Minnesota
2015 Ram 2500, former 2013 GL350, 2007 GL450
Junior Member
Joined: May 2014
Posts: 29
Likes: 0
lexus LS430
been getting 23 in mixed traffic..........i love the paddle shifters cause you can increase your MPG by upshifting faster that the automatic does.......only problem is sometimes you come to a light and it doesnt shift back into auto so when you take off you'll need to do the shifting or it will redline quick...........
Member
Joined: Oct 2012
Posts: 140
Likes: 4
From: California
2010 GL350, 2005 BMW X5 4.8is, 2015 BMW 328d
I have been getting average 29-31 highway on branded 5-20% max biodiesel.
We have Propel fuels B20 and SC fuels B5-B100. My habits are mostly geared towards Hypermiling.
Last edited by drgeeforce; Sep 29, 2014 at 12:57 PM.
Member
Joined: Mar 2013
Posts: 107
Likes: 2
From: Weston, Florida
2014 GL350BT
If really interested in good MPG stats, go to www.Fuelly.com. I post all of my fill-ups there. A great site to see real world data.
Junior Member
Joined: May 2014
Posts: 29
Likes: 0
lexus LS430
20-23 around town in new 2015 GL350...............i do notice that when its at half full and i fill up its usually more than half of the 26.2 so it seems this 90k suv's fuel guage isnt the greatest.......but hell the fuel guages in the jets i fly arent much better...
