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 > Your search for posts made by 'artie2908' found 7 matches.

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RE: GM 6.6 gas

I have a 2020 GMC Sierra 2500 CCSB with the 6.6 gasser. (six speed trans, 3.73 rear) I pull a Airstream Flying Cloud 28 foot trailer. The trailer was weighted on a CAT scale, ready for the road at 7,000 pounds. Towing I get 10-11 mpg, with reg.gas, over varied terrain, covering over 5,000 miles. I am very happy with the performance of the gas engine. Plenty of power. My previous truck was a 2011 GMC Duramax diesel. comparing the two, the diesel definitely pulls stronger and got 12-13 mpg pulling the same Airstream. I went to gas mainly because I couldnt take the problems of the diesel emissions anymore, and saved $10,000 going with a gas engine. Can buy a lot of fuel for $10,000 I would buy the 6.6 gas engine again. empty 15-16 mpg. If I get on the interstate and baby it I can get 17 mpg hope that helps
artie2908 07/19/21 06:44pm Tow Vehicles
RE: How will my new F350 behave in cold temps?

I have been in very cold weather with my duramax pickup truck where I was unable to plug in the block heater. Even though it sure would have been preferable, it wasnt a problem. Started right up I do use low viscosity oil 5W-40 Cold weather---- -20 to -30 below
artie2908 12/20/20 12:21pm Tow Vehicles
RE: 6.6 Chevy gas engine

on a somewhat related subject... I have often wondered why the 6.6gas is compared to the Ford F250 7.3 gas 10speed? wouldnt a more aligned comparison be with the Ford F250 6.2 6 speed? That is Ford's gas entry level in the F250 and is much closer in engine displacement than 7.3 vs 6.6 It would be apples to apples and yes, I realize you can get the 10 speed in the 6.2 gas version but it's only in the top trim level.
artie2908 12/13/20 10:02am Tow Vehicles
RE: 6.6 Chevy gas engine

your points are well taken. I have heard rave reviews on the 10 speed Duramax. But... the 10 speed in the Duramax is not the one that would end up in the gasser. The gasser would be a different 10 speed. Another brand new trans. Ford / Gm worked on a joint venture to develop a ten speed trans. Ford obviously came out with theirs in the 7.3 Have no idea why GM didnt come out with their ten speed too. Time will tell. Good to hear youre loving the powertrain. If I was going back to diesel that would have been my choice.
artie2908 12/13/20 09:48am Tow Vehicles
RE: 6.6 Chevy gas engine

the trans(10 speed) behind the 6.6 duramax diesel is an Allison branded trans, whatever that means and the one behind the 6.6 gas is manufactured by GM. (6 speed)
artie2908 12/12/20 07:42pm Tow Vehicles
RE: 6.6 Chevy gas engine

my 2020 came with 275/65-20R Goodyears. Just switched over to snow tires for the winter-- 275/70-18R The speedo is now off by 2-3 mph. at 60MPH displayed, I'm actually doing 57-58. One of the reported reasons for staying with the 6 speed was it's proven, whereas the 6.6 gasser was a brand new engine. Didnt want to press their luck with two major drivetrain components. also why put all the goodies in the first year? you need to make gradual improvements to stimulate sales. I am completely happy with the six speed. Would a ten speed be better? Maybe. Maybe more complexity than is needed too. We have come a long way with Transmissions. My first car was a chevy 2 speed powerglide. Three speeds came next. Four speeds were state of the art. 6-8-10 speeds, at what point does it stop? I test drove a Ford F250 7.3 10 speed, on two occasions. Nice truck but thought the trans was huntinng and bouncing around alot. Okay I was unloaded but still. I guess it comes down to whatever makes you happy. Probably going to be at least 2022 or longer before GM comes out with their 10 speed in the gasser... if at all. If you find more speeds are that important buy a ford or the 8 speed 6.4 gasser from Ram. It's your money buy what makes you happy. What is great for me may not be great for you.
artie2908 12/12/20 06:29pm Tow Vehicles
RE: 6.6 Chevy gas engine

I have a 2020 GMC Sierra 2500 CC with the 6.6 gas. Got 6,000 miles on it, with about 2,000 towing a 7,000 lb RV trailer. Empty I get 15-16mpg if you baby it 17-18mph 10.5-11.4 towing I drive 65mph tops. I came from diesel pickups this is the first gas engine I'v had in 21 years. Love it. Not as powerful as diesel but it is no slouch. and none of the diesel emission headaches
artie2908 12/12/20 01:18pm Tow Vehicles
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