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new 3.0

why did you buy it

Re: new 3.0

Postby Chamba » May 06 2020, 1:52pm

I've got 6300 miles on mine so far and i love everything about it. Over the last 6300 miles I'm averaging a real 27.6 MPG while the computer actually says less by about 5-10%. My range is consistently just under 700 miles comfortably- could do more but I like still having fuel when I fill up. my only complaint: why not a bigger fuel tank?

Changing the oil is an absolute pleasure and I've done both changes in under 10 minutes each.

So far, I'd recommend this truck and engine to everyone considering a truck. It's a very well thought out engine and a fantastic truck.

I'd love to see it in a manual transmission vehicle one day.
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Re: new 3.0

Postby toneyjay » May 06 2020, 2:48pm

I agree. Mine averages 1.5 MPG better than truck says it's getting. It cruises at 75 mph right at 1500 rpm. Which is right at the beginning of its 460 ft lb of torque range and never needs to get much over 1800 in a pull while cruising. Plus when you do step down on it you can still feel it in the seat of the pants. Lol.
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Re: new 3.0

Postby adam86107 » May 06 2020, 11:31pm

I'm interested to see how these engines do over the long run and which, if any, of the common diesel failures they will be plagued with. I wonder if they have a lift pump.
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Re: new 3.0

Postby Chamba » May 06 2020, 11:46pm

To which "common diesel problems" are you referring? I've had numerous diesels, all with over 300,000 miles when traded. None with "common diesel problems".

The only "common problem" i know of are ones which are caused by lack of proper maintainance through lack of knowledge about diesels.
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Re: new 3.0

Postby toneyjay » May 07 2020, 12:09am

One problem they will not have is AFM issues.
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Re: new 3.0

Postby 19trax95 » May 07 2020, 12:16am

Probably mean emissions failures that all modern diesel are plagued with.

I cant wait until they come out with a tunable ECM for the 3.0 so you can rip that crap off there and see what that little motor is capable of when it's not being choked out.
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Re: new 3.0

Postby adam86107 » May 07 2020, 12:21am

I was referring to mainly emissions, but also the fuel system. We seem to go through a lot of turbos, also. Granted our equipment is typically ran harder than a truck.
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Re: new 3.0

Postby Chamba » May 07 2020, 3:52am

I've never gone through a turbo funnily enough. My last diesel with 368,000 miles had the original turbo. However, I always change the oil at 5000 miles and I never shut her off straight away, but let her idle down at least 30 seconds. I also never start her cold and start diving immediately.

I also have classic American muscle cars and I treat them much the same. My grandfather used to tell me "treat your machines well and they'll treat you well." I still live by that.
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Re: new 3.0

Postby Retired guy » May 20 2020, 2:17pm

I got mine after coming from a GMC Denali with the 6.2L gas engine and was tired of 15 mpg . I seldom tow and just wanted better mileage in my day to day driving. So far I’m averaging 26 mpg with the diesel and loving it.
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Re: new 3.0

Postby racermd » May 20 2020, 6:15pm

Retired guy wrote:I got mine after coming from a GMC Denali with the 6.2L gas engine and was tired of 15 mpg . I seldom tow and just wanted better mileage in my day to day driving. So far I’m averaging 26 mpg with the diesel and loving it.


I, too, came from a Denali with the 6.2L but switched for the overall fuel range on a single tank - an extension of overall fuel economy.

The power of the 6.2L was... intoxicating. But all I really needed was the torque to haul a bunch of stuff for the family and pull some fairly light trailers around. The 3L diesel has all the torque of the 6.2L but way down low in the RPM band which makes pulling anything (within the bounds of a half-ton pickup's capability) super-easy. The fuel economy is crazy for a truck this size, too. That said, the one and only thing I miss about that 6.2L is the highway passing power. Okay, maybe the great sound that engine made, too.

Either GM is severely under-rating the tow figures for its trucks or the other manufacturers are over-rating theirs. This platform is SOOOOO capable of more.

Part me of really wishes GM didn't mothball the 4.5L diesel (LMK) that was in development before the carpocalypse. Rumored to have 300-ish hp and 500-ish torque, THAT would have been a beast of an engine for a half-ton pickup. And probably a topic for a different area of the forum...
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