Transmission(s): Allison 5-speed automatic, ZF-6 6-speed manualīest Year(s): Any year, as long as all 8 injectors have been replaced with genuine Bosch re-man units The lightweight and independent front suspension on these trucks makes obtaining 20-mpg a cinch and gives them better ride comfort than their solid front axle Ford and Dodge counterparts.Įngine: 6.6L LB7 Duramax V8 with Bosch common-rail injection system However, once the injector issue is addressed, the LB7 is extremely reliable. Sooner or later, the injectors will need to be replaced (a $3,000 to $4,000 expense depending on the shop performing the work). The one Achilles heel of the LB7 Duramax engine is injector failure. While the first models of GM trucks to offer the Duramax engine/Allison transmission combo are aging, clean versions can still command a pretty penny.
So, keep in mind that you may have to fork over $20,000 or more for an immaculate, 10-to-12-year-old truck. Whether you’re after horsepower and torque, fuel economy, ride comfort or reliability, the Duramax-equipped rigs coming out of Detroit over the past decade and a half are tough to beat.įair warning, these trucks generally hold their value better than Ford and even Dodge trucks of the same vintage, and the pre-emissions versions (2001 to 2007) are highly sought after. I'll let you know about this '21 once I get a few miles on it.Chevy runs deep and Duramax-powered GMs with Allison transmissions behind them run even deeper! All in all, ¾- and 1-ton Chevy Silverados and GMC Sierras offer what are arguably the best all-around heavy duty trucks produced by the big three. Jus another tool for you to evaluate the truck you are considering. The average speed when I traded it in was 44MPH.
CATEYE DURAMAX DRIVER
My 2017 for example was used mainly in the summer months on road trips and was not a daily driver in the winter months. High average speed indicates a truck that was used on the highways on trips where it maintained higher speeds. Low average speed may indicate the truck was left idling or used around town as a daily driver. You can get a good idea how the truck you are considering was used by dividing the engine hours into the mileage and get an average speed of the truck over it's life time.
I have not seen this posted anywhere before so I will share it for those looking for a used Duramax. Overall I don't think you can go wrong with the Duramax. Realize this is an older thread as I was looking for info on the '21, but wanted to share my reason for loving these trucks and yes I have not had the nightmares others have suffered or my opinion might be different. I could have kept the 2017 another few years, but why wait at these values. You just can't beat the Duramax for holding value.
CATEYE DURAMAX LICENSE
I just traded my 2017 Duramax with 49K and got $53K trade in value and walked away with a fully loaded 2021 LTZ, tax, license and 10-year extended warranty and rebates for $21K out of my pocket. It makes it easy to trade up when you get so much value on a trade in. If you wonder why I trade them in every 4-7 years is because these trucks are in high demand and really hold their value like nothing I have ever seen in my lifetime. I do a lot of towing going to car shows all over the country in the summer months (I am retired) and the Duramax has never failed me, not even a flat tire (knock on wood). Arriving this week, maybe today and can't wait to run that 10-speed Allison through the gears. That truck got 22MPH when not towing with cruise on set at 70MPH. Traded that in on a '17 and only issue was leaking OnStar antenna on the cab. Traded that in on an '12 and had a couple sensors replaced. Traded it in on an '07 which was a great truck, no issues at all. I had an '01 and solved the injector issue with a Cat Filter first out of the tank, then on to the OEM filter which was not a good filter and allowed a lot of junk through to the Injectors before I added the CAT filter. I have not had a bad one, a few small issues easily solved under the warranty or a solution found on this and other sites from members who always help.
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