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diesel 3.0

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3.0 diesel chevy's

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  1. What's new in this club
  2. About two weeks ago I purchased from Amazon the Launch CPR129X scanner. If you are looking for a scanner for your own use, this might be a good choice. The price varies on Amazon. I've seen just below $200 to around $240. It gives a lot of information and the firmware comes with a free lifetime update. The scanner also connects to wifi and allows it to download updates. It also has a "Mall", Store, that you can purchase add on functions. I purchased the add on for GM vehicles that adds more function. This was an added $34 purchase on the Mall off the scanner. The add on features are only good for one year.
  3. Just bought a 2024 Custom Trail Boss 3.0 in Black! So far, I'm averaging 24.8 MPG, and Im loving the truck a lot.
  4. I bought my 2023 LTZ in August of 2023. I've had 2 other diesels before this 3.0. I had a 2006 Silverado 2500 6.6 LBZ and a 2011 GMC Denali 2500 6.6 LML. I had a 5th wheel toyhauler I was towing but have traded that in for a lighter bumper pull travel trailer and do not need the 2500HD anymore. The Denali LML wasn't a very good truck but the LBZ was a beast. I'm older and wiser now and am more about comfort over 1/4 mile times. The MPG of this 3.0 is pretty nice also.
  5. How has this worked out so far? I'm curious on the new UCAs. Since you only went up 2.5 on the front, do you think the new UCA was a requirement? We know the stock UCA can take a 2 inch lift no issue and I think that can be stretched to 2.5 and still be inside the original design margin. Was caster an issue for alignment with the new UCA?
  6. i ended up purchasing the PPE kit for the resonator delete mixed with the new hoses. Still don't have the cold air tube that goes from box to turbo, but i feel like i've seen a difference in fuel economy than stock. been averaging 29-30mpgs when previously around 28-29. Could also be slightly cooler weather, but time will tell
  7. so i started a WTB thread, but bringing it here too in hopes to get answers. Because i'm in california and have to smog the diesel every 2 years, i was hoping not to put the full S&B vcold air kit on. I don't want to have to remove it every so often for smog, and since i'm still under warranty, i was hoping to keep things more stock looking under the hood. Since the S&B turbo tube is shoved in the back and hard to see, i was thinking that part would be fine to replace if it mated to the stock airbox. then i saw the PPE boots and thought that the boot would definitely flow better then the accordion type tube. This would effectively keep the stock airbox (and sticker) and tubing would look mostly stock, while still having better flow.
  8. Bilstein 5100's front and rear (trailboss part number) Rough Country UCA for 3" lift Motofab rear 2" block with U-bolts +2.5" in the front +2.0" in the rear I know the pic shows otherwise, but I put the front strut circlips set to the middle position for .55" of lift. Wanted to maintain a touch of forward rake, and with the extra weight of the diesel it worked out perfect.
  9. So I have 19' 5.3 RST w/ 28k miles and I have been looking at ordering a 23' RST 2/ the 3.0. I just saw a 2020 RST exact same color as mine w/ the 3.0 but it has 42k miles, I have heard people having issues with the rear main seals leaking, my brother-in-law has a sierra 3.0 that has a small oil leak somewhere so I am hesitant now on these engines. Are they reliable and that much better than the 5.3? I have a travel trailer that is about 4,500lbs that I pull so I thought the 3.0 might be a better option for fuel economy but curious to hear real world experiences.
  10. I just bought a 2021 AT4. It replaced a 2017 Colorado with a 2.8 L TD. So the Colorado didn't have any kind of guage on the DEF tank. It was truely a guessing game. If you let the tank get low, the check engine light would come on. What a pain in the ass! So I was excited that my new truck had a guage. From past expierience, Yes you will deffinetly use more DEF when towing. So far I am seeing that the guage isn't very accurate but simply a guide. I filled the tank when I got it and I have the trip odometer set to see about how many miles that I can get on a tank of DEF. Just a starting point. I also get a message saying how many miles left on DEF. I recently towed my boat on a 3,000 mile trip and got 18 mpg average for the whole trip. I have noticed that the mpg is matched to the mph. At 60-65 mph I would get around 20 mpg, and at 70-75 mph I got 17 mpg.
  11. I did the rough country 3.5, I had to change my wheels to do the 35X12.50 however I did have to manipulate my fender liners to eliminate the rubbing.
  12. I went with the Cognito 3" coilover kit and I am super happy with it! I mean, I would love to lift it 5-6 inches and run 37's but I cant do that as I drive almost 55 miles daily. The Cognito coilover's (Fox shocks) ride great and I kept my stock wheels and went with 35x11.50- I did need a 1/4" spacer on the front and did some minor trimming, but the ride and droop on those coilovers is ridiculous! When I went to rotate my tires my big floor jack just barely got the fronts off the ground because of all of the travel on the suspension
  13. I'm in the process of getting a 4" Ready Lift and some 34" tires. In Phoenix I've had some issues with shops figuring out what will work for the 3.0 since a lot of manf's don't list them and don't want to put on something that they can't confirm fitment. The Lift Shop and Midway Chevy seem to be the most knowledgeable.
  14. I have a 2020 Chevy 1500 babymax and looking for a level/lift kit. Would preferably like to take it to around 2 or 3 inches and hopefully keep the factor 20 inch wheels. Got stock 275/60/20 at the moment and would like to go bigger as well. I've done done research and it seems like many of the coilover or snap ring lift shocks offer less lift to the diesel engine variants. What are y'all running lift wise and what size tires are you running?
  15. The 10 speed tranny was a GM+Ford joint development. I had a 2019 Raptor and experienced plenty of shift issues..they updated the software and it was better but the GMC version shifts like a dream compared to the Ford. Software differences? Could also be that it does much better mated to a diesel.
  16. I always change out the factory oil at around 1,000 or less. Just want to get any of the particles from the manufacturing process out of there. On my new 2022 Sierra which I am taking delivery of this week with the 3.0 I will follow the same pattern I have on my other vehicles. I never pay attention to what the oil life monitor says and I will change every 5K using either the AC Delco Dexos or the Mobil 1 Dexos compatible oil with either the AC or Mobil 1 filter. Looks like oil changes on this engine a snap compared to my 2017 Ram which was always a guaranteed mess with the way they mounted the filter on the Hemi. To me clean high quality oil is cheap insurance.
  17. Resurrecting the thread a bit. My question is if the first oil that is installed by the factory is not regular off-the-shelf oil. I know first filter on my two 5.3d were different from store or dealer sold filters. I am thinking if the factory fill contains anything that helps with the break-in. Has anyone done any oil analysis on the 3.0 factory fills to see if they use regular oil or not? If break-in oil is in, I would guess it is beneficial to let it run longer.
  18. Traded my 2020 HC with 6.2 in Dec 21 for 22 LTZ 3.0. No shift issues at all. Had a couple times of extended crank no start. Other than that a great ride, fuel economy excellent. Last tank at 2922 miles was mixed driving in town then a 100 mile run at 55 to 60. Hand calculated mpg was 29.3 Running 33 inch Bridgestone AT Revo 3 on Black Rhino rims.
  19. Started a thread in the forums about this but was wondering if anyone with a 1500 AT4 with the 3.0 can tell me what the sticker says for mileage ratings. Thread below with specific points/findings.
  20. 2022 RST, Z71. Drove a 2019 5.3 for almost 2 years, had an engine replacement under warranty. Knew one other person with a rebuild under warranty. Didn't want to go back to that. Absolutely love my 3.0. Much better mileage than the 5.3. Better power too. Havoc nerf bars, 20% tint. 3" superlift A Arm lift is on the way.
  21. I have a 21 Silverado Z71 LTZ with the 3.0L. I have had the 5.3 L in my past two Chevy's but wanted to be back in a diesel. I traded mine in and got this one and love it! It has 12K miles on it now and has a 3" Cognito Coil over lift, 35x11.5 Toyo Open Country ATIII's, Go Rhino running boards, Diamondback HD Tonneau cover, Auto Stop Eliminator, Rough Country Speedometer calibrator, and debadged (Except the "Duramax"- I had to leave that!)
  22. Has anyone installed, or heard of anyone installing, a oil catch can being installed on these 3.0 duramax diesels? I’m thinking of getting one and installing on the tube that goes from cam cover to turbo.
  23. Plan on adding 5100's to the rear as well. Truck is nearly stock height (Slight lift in back caused by Roadmasters).
  24. It will make zero sound difference, no matter how big you make it. An exhaust tip generally isn't going to make any sound difference.
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