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Joined: Dec 2012
Posts: 179
Campfire Member
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OP
Campfire Member
Joined: Dec 2012
Posts: 179 |
Anyone own or know someone who owns a Chevy 1/2 ton Duramax diesel?
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Joined: Jan 2009
Posts: 1,859
Campfire Regular
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Campfire Regular
Joined: Jan 2009
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Joined: Jan 2001
Posts: 30,760
Campfire 'Bwana
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Campfire 'Bwana
Joined: Jan 2001
Posts: 30,760 |
T R U M P W O N !
U L T R A M A G A !
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Joined: Feb 2005
Posts: 4,455
Campfire Tracker
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Campfire Tracker
Joined: Feb 2005
Posts: 4,455 |
I just purchased a 2020 Silverado LT with the I-6 Duramax. Only had it about a week so not a huge report. So far it has been excellent. I have had Silverado trucks for years, always with the 5.7 or 5.3 liter gas motors and this 3.0 diesel is a fully adequate replacement. Not quite as much step off the line but after that it pulls hard up to highway speeds. And, in the first 450 miles the hand calculated mpg has been 24.2 mpg with a mix of 70% highway and 30% in town driving. And this is with larger 305/65/18 tires on it.
Last edited by duckster; 10/05/20.
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Joined: Nov 2004
Posts: 5,499
Campfire Tracker
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I was interested in those UNTIL I saw that the oil pump is driven by a belt.
150K mile replacement.
Belt has to be accessed from the back of the engine, so, transfer case and tranny gotta come out.
No thanks.
It looked like a nice engine for a 1/2 ton until I found that little gem.
Last edited by Hawk_Driver; 10/05/20.
There is no way to coexist no matter how many bumper stickers there are on Subaru bumpers!
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Joined: Feb 2005
Posts: 4,455
Campfire Tracker
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Campfire Tracker
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I will likely trade off before then so hopefully won't be an issue.
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Joined: Nov 2008
Posts: 4,201
Campfire Tracker
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Campfire Tracker
Joined: Nov 2008
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All modern diesels are hamstrung by a nexus of EPA mandated ULSD paired with fuel pumps that aren’t rated for the ULSD, EPA mandated EGR systems that reduce mileage and hinder power and reliability, EPA mandated DPF and SCR systems that are failure prone leave you in a government mandated limp mode. All of these things reduce mileage when diesel already costs more than gas. In a HD truck that pulls a lot it may be worth it. In a 1/2 ton grocery getter/deer hauler I would take a hard pass.
Last edited by K1500; 10/05/20.
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Joined: Feb 2005
Posts: 4,455
Campfire Tracker
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Campfire Tracker
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Around here, diesel is about 6 cents more than gas where I fill up. Doing the numbers saves me about $550 a year in fuel costs. Not a lot but enough. And I was thinking of the 6.2 liter motor at first, which is exactly the same cost as the diesel. So up front costs are the same, actually less because the diesel was available in the LT trim and not the higher LTZ or High Country.
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Joined: Dec 2005
Posts: 4,172
Campfire Tracker
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The 6.2 requires 93 octane. Gotta factor that in. But it is available in the LT/Trail Boss trim.
I'm really liking my 6.2. Never even considered the baby diesel.
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Joined: Feb 2005
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Campfire Tracker
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Campfire Tracker
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That is true. In that setting, diesel is cheaper than premium.
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Joined: Feb 2005
Posts: 4,455
Campfire Tracker
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Campfire Tracker
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Had a short road trip last night, only about 50 miles on 2 lane highway. Cruise set at 58 mph. No wind last night. Trip computer indicated steady 30-32 mpg. FYI.
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Joined: Dec 2005
Posts: 4,172
Campfire Tracker
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Campfire Tracker
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That's really good! My 6.2 in a TB crew has done 25mpg for a short empty interstate run.
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Joined: Feb 2007
Posts: 2,070
Campfire Regular
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Campfire Regular
Joined: Feb 2007
Posts: 2,070 |
I have a friend that has had one for a couple months now and she has been 38MPG highway driving.
Writing from the gateway to the great BluMtns in southeastern Washington.
Just remember, "You are the trailer park and I am the tornado". Beth Dutton, Yellowstone.
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Joined: Feb 2005
Posts: 4,455
Campfire Tracker
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Campfire Tracker
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I am going out to the ranch this weekend. 225 miles each way. If the wind is calm, should get a better picture of highway mileage
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Joined: Feb 2008
Posts: 1,458
Campfire Regular
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Campfire Regular
Joined: Feb 2008
Posts: 1,458 |
I got a GMC with one in May. Currently over 9K miles.
The GMC are rated lower MPG due to aerodynamics & weight. I'd say I average 22-27 doing 77-80mph, depending on wind. Around home doing mostly short trips about 21mpg. I've gotten as high as 29 in an area where the interstate speed is lower - doing 65ish.
I like it a lot better than the 5.3 in my last truck.
Where all the white women at?
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Joined: Dec 2005
Posts: 5,923
Campfire Tracker
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Campfire Tracker
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I bought one the end of February.
AT4 package and immediately put 10ply Falken tires on it.
I have 12K on it. 35% of the time towing something and 10% of that has been pulling my 27' toy hauler which runs about 8K pounds.
To date overall average is 17.9 mpg, If I run empty down the interstate at 80, I will get about 22mpg.
I had the 6.2 half ton. I really liked it, but for towing the diesel wins hands down. When pulling my camper, it would get between 6-8mpg. The diesel is between 9-10mpg, but tows so much better.
Last edited by CRS; 10/18/20.
Arcus Venator
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Joined: Jan 2006
Posts: 69,322
Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2006
Posts: 69,322 |
Does the Chevy have a compression brake? That's what I really love about my Dodge diesel.
“In a time of deceit telling the truth is a revolutionary act.” ― George Orwell
It's not over when you lose. It's over when you quit.
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Joined: Feb 2005
Posts: 4,455
Campfire Tracker
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Campfire Tracker
Joined: Feb 2005
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I think that the brake is based on the transmission, not a true compression brake.
Trip to the ranch with 68-70 on the highway and then some puttering around out there yielded 24 mpg. I thought that seemed low until I realized that I had put it in 4wd Auto and forgotten to take it out....!
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Joined: Feb 2005
Posts: 4,455
Campfire Tracker
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Campfire Tracker
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I will say that the new 10 speed auto tranny seems really good.
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Joined: Jun 2001
Posts: 19,071
Campfire Ranger
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Campfire Ranger
Joined: Jun 2001
Posts: 19,071 |
Does the Chevy have a compression brake? That's what I really love about my Dodge diesel. My 2019 definitely does. When you kick it in going down grades with a load,you can hear it.I had an after market one on my 1998 Dodge 5 speed manual and I think it worked better though.Could be the difference in the 2019 is a 6 speed auto
Last edited by saddlesore; 10/20/20.
If God wanted you to walk and carry things on your back, He would not have invented stirrups and pack saddles
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