LMM mpg?

06LBZ · 06-13-2007, 10:03 PM

LMM owners what are you seeing for mpg?

whitewhale · 06-18-2007, 04:20 PM

Have a crew cab 4wd, only 500 miles on it, so far 15.4 towing a bass boat and 16 mpg combined highway and in town. Just put diesel kleen in a fresh tank of fuel, so no results yet from that.

I'm sure mileage will increase once broken in and if I can keep my foot out of that torque.

Mike

07LMM · 06-21-2007, 10:50 AM

I have A 07 LMM Crew Cab Z71 just tagged it today so had it about 4 weeks. I have just over 5000 miles on it. On my first trip all highway I was seeing 18 mpg.
In town and highway I see around 16. It is still Bone stock.

07LMM · 07-18-2007, 08:17 AM

Just got home from a trip to South Fork, Co. about a 1200 mile round trip. Pulled a 28ft 5th wheel with 2 slide out not sure on the weight.. Got 15mpg on the trip. Have 8300 miles on truck.

whitewhale · 07-19-2007, 02:35 PM

Have 1500 miles on the 07 LMM crewcab now, getting 19mpg all highway and 16mpg in town, up from previous posting mpg. Still using power service fuel treatment, summer blend at the minimum amount.

The 19mpg was at 68mph average, nothing being towed.

Mike

llord · 07-23-2007, 02:06 AM

15.1 in town...1000 miles on the truck

DuramaxGuy · 07-23-2007, 10:45 AM

13,000 miles - all stock parts- 3500HD LMM - getting around 17.5 in combined city/hwy.
Amazing mileage when on the hwy. A little better than the 06 LBZ.

whitewhale · 07-23-2007, 04:47 PM

Went on a trip this weekend, 2007.5 LMM crewcab 4wd, previously posted 19mpg, it is up to 21.4mpg going 65 to 67mph, gets 20.5mpg going 70-72mph, no towing, odometer at 1750 now.

Mike

07LMM · 08-07-2007, 02:11 PM

still about the same as above 10,500 miles on her...... Got to love 2.95 fuel....

jimmarla · 08-23-2007, 12:46 PM

Crew cab 4x4, 3/4 ton, Duramax with Alli, 12 mpg towing my 16ft enclosed landscaping trailer, 14 to 15 mpg when empty. I have been taking it easy on the truck, I have not even had it to 75 mph yet.Maybe she will get better!