A short review of my duramax LML. Chevrolet 2013.

I used a go pro for the recording and It didn't get a good view of the actual fuel mileage.

UPDATE: 11-8-14 Put the truck on a Dyno test. STOCK HP: 407 TQ: 774.9 Pretty impressed.
Here are my specific #s for fuel mileage with this truck.
Most of my driving is Highway, 60mph, freeway 65-80mpg.
OVERALL average 19 mpg. - Pulling, driving, city, unloaded, highway ect.

Unloaded highway BEST MILEAGE has been 27.2 MPG. I did a trip from GA to MI and tested it for 640ish miles. I was really trying to get good mileage, average speed was 65mph.

The LEAST fuel economy I get was when pulling about 10-12k. It was pulling around 8-10 mpg.

Ordered a Duramileage Plus from these guys: [ Ссылка ]. Says to guarantee 3-5MPG increase. Will be here after november 1st so I'll get some video for that. Also will be running it on the dyno on Nov 8th.

As far as the DEF and DPF system on this truck...I have zero problems or complaints. DEF fluid lasts about 4500k miles.

Truck regen's every 600-1100 miles. Only way I can tell is that the engine idles high, and it smells like burning breaks. Other than that its fine. (still considerding deleting the entire emissions system on it)

I've consistently run diesel fuel additive to each tank, They say it helps to keep things lubricated and clean, easy stuff.

Also will be installing an amsoil bypass dual filter kit and running amsoil from now on.

свернуть