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About Carolina

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    2020 2500HD LTZ 6.6 L8T

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  1. I currently own a 2020 6.6 , 2018 6.0 , 2009 Duramax and 2008 6.0 . The 2020 on factory 34”+ tires has the best fuel mileage non towing, the fastest, holds higher speeds on 7 % grades with the same trailer. The 09 is best towing mpg by 1 mpg , shifts the least in tow haul mode although the 2020 in man 5 ( same top gear as 09 in tow/haul) isn’t very far behind. 09 is the most comfortable to drive towing with cruise on in hills . 2018 moves loads from dead stop with the least amount of throttle, has much smaller tires 245’s is second with mpg non towing. The l5p 2020 will win them all over but t
  2. They’d have to put 4:10 or lower in it with the 10 speed or it would hardly ever make it to 10th with the bigger tire combos. Rpms are low in 6th with the 3:73 . Probably could go up to 4:56 but that would have to high of a tow rating for someone to pick the diesel in a 2500 . The 6.6 gas got the power to do some serious towing with the 10 speed and lower gearing just don’t have the engine brake to stop it
  3. Just keep your half ton . If you’re that concerned with mileage you won’t be happy with any 3/4 on the market.
  4. Are you sure you’re truck didn’t get flooded??
  5. Lol . Here is my trip average, forgot to post it .
  6. The shifting was noticeable but it wasn’t horrible . If I turned the radio on I would forget about it . It was landing barely above 3k . I’m fine with the mileage especially with gas at $1.80 a gallon . With the work it did it’s an improvement. I’m happy . I’ve never dropped below 8 in my LMM but neither has it hit 10 on this trip
  7. Mine is silky smooth . The heads up display is awesome towing where you can keep your eyes on the road and not get a speeding ticket .Changing lanes with the technology package cameras is great too . I caught a car in the lane I didn’t see in the mirrors already towing my Travel Trailer
  8. I just finished a 600 mile round trip from Sc thru NC and TN mountains towing 9130 pounds . Interstate grades were a 3 mile 6% , 1 mile 7 % , 6 mile 7% and a few 10% backroad grades . I can say I was amazed in the mountains. One thing I noticed is that it tows better on grades at speeds 65-75 vs trying to run 60 due to gear ratios in the transmission . With my setup at least with the 34+ tires . The first grade I hit running 61. It took about 2 miles to drop to 56 at 3200 rpms and I finally floored it to find it wouldn’t downshift further at first ( noticed the same with my 6.0’s ) so I doubl
  9. You can order the flip down online and install. It’s pretty simple to do
  10. So have you towed with one or you just watched the IKE pull and know everything about it now? You ever thought about the fleet perceptive ? The 6.0 is one of the most respected engines for HD service vehicles for capability , reliability and cost of ownership. The 6.6 has a 15-20 percent efficiency increase over the 6.0 . It has as much torque at barely over idle as it which translates into better towing and drive ability performance. Behind the wheel of one it feels very powerful and is a pleasure to tow with. Of course it doesn’t have a turbo like a diesel and if it did it would be challenge
  11. The 6.6 is the base model just as Ford has a base model . Ford has 3 engine options. Gm has 2 . The GM big block capability is yet to be seen. The 6.6 is completely capable of its rating
  12. Yeah I use to have pos Toyota that’s supposed to be magical with gas but somehow my HD gets better mpg and can tow 2 1/2 times the weight
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