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GullLakeMi

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About GullLakeMi

  • Rank
    Enthusiast

Profile Information

  • Location
    Michigan
  • Gender
    Male
  • Drives
    '21 Sierra AT4 Carbon Pro 6.2L

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1,890 profile views
  1. With my ‘16, 6.2L, the clunky 8 speed transmission took all the fun out of it so I would put in mid or regular gas from time to time just cuz. I couldn’t tell a performance difference. With my ‘21, I try to use premium. One convenient station now carries only regular. I think I filled up anyway since I was already there, but haven’t gone back. Hopefully your mileage improves with age. Not sure how two similar trucks off the line would be that different (maybe it’s idle/city/highway/driver mix).
  2. For once somebody posting mpg worse than me. I usually run premium, but have checked my mileage using pump and odometer. This is with only people and light bags as cargo. It’s obviously worse towing trailer. I’ll admit I drive pretty tamely, but not hyper-miling Surprised you are that much lower.
  3. I'm coming from a Denali. 6k miles on AT4. Tires certainly have more noise than Denali. Enough you know they are there, but not loud. 6.2L 10 speed. I get 18 mpg in mixed driving. Only slightly better at 78mph highway. Haven't really tested off road, wet and no snow yet. I was worried about this, but based on experience so far would replace with same.
  4. Mine has always worked fine when appropriate, but its also kicked in a couple times when nothing was in front of vehicle. I disregard those instances as a system limitation or failure. Big deal. Maybe I'm lucky nobody was tailgating me when that happened. I use it for highway pacing, but usually have foot near brake and disable cruise while passing a slower car in traffic (other left lane vehicles present). I view it as safety assistance, not automated driving. Not saying I drive better than a computer, but I managed to drive for 30 years before this technology existed without
  5. Agree. The cover on the Curt product is critical to its function. This setup does have easy to install, oem type connectors. I believe the tailgate fix option is more splicing into the purple wire.?.
  6. I have the MX4 on my '21 Sierra AT4 with Carbon Pro bed. When opened up, it does cover the rear window, but not the brake light or camera's mounted there. I flip the rear view mirror to camera mode and all good. My observation is the panel next to the cab that does not fold is a little wider than previous having the folded panels at more of an angle against the cab and possibly lower overall.
  7. I also went this route. Good product. Easy to install. When receiver cover is open (hitch tongue inserted), it allows main tailgate to come down, but not smaller section that will hit. Perfect solution.
  8. My guess is it is actually favorable to their P&L to incur the storage costs if it allows manufacturing to continue. If they are manufacturing, the costs to build the truck (labor, utilities, etc.) can be capitalized to inventory. More importantly it also allows them to capitalize the costs of related building and machinery/equipment depreciation as well. If the factory is idle, those costs may have to go directly to P&L. For sure it uses more cash in the short term that goes on the balance sheet as inventory, but that is favorable to short term expense. Either way, any profit mar
  9. OK. Another way dealers manipulate situation in their favor, but if you want a truck now you don't have much choice. I have had my '21 AT4 6.2L for almost three months now and am very happy. Hope yours is great!
  10. You completed the sales transaction without actually taking possession of the vehicle? First I've heard of that. Is it your responsibility to insure it as well? Why not just put down a deposit?
  11. Installed BakFlip F1 on my 2016 Sierra and an MX4 on my 2021. Both leak drips in 4 corners during rain. I did ensure alignment of install, but never spent much time adjusting gaskets and trimming. I accept its part of the nature of the beast to have low profile, folding, etc.
  12. Anybody get there leaky sliding window replaced with a fixed window?
  13. I couldn't imagine reading a book on this topic, but do appreciate the cliff notes. In Michigan, 55mph is the minimum legal speed and a great way to get run over. Agree that might be the optimal speed for gas mileage, but not practical in any way. I've only had my '21 Sierra AT4 6.2L 10 speed for 2k miles. I was recently on a trip with a multiple car convoy. Leader was averaging 68 mph on interstate highway towing a trailer setting the slow pace. At that speed on relatively flat terrain, I averaged 25 mpg on best 25 mile segment and 24 mpg on best 50 mile segment.
  14. Thanks for this. I missed the OnStar threads. Agree with your sentiment. I really only want remote lock/unlock and start. Not worth $180/yr. Be interested to know what it costs GM. Feels like succumbing to highway robbery to pay for it. It’s same as overcharging for shipping.
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