Recent content by Koppster

  1. Koppster

    6.6 Gas Borla Quiestions

    I have had the S on other trucks but much prefer the Atak. I'm an old guy and like my vehicle to sound like our cars did in the 60s and 70s.
  2. Koppster

    No trailer lights with 4 pin connection

    Good Morning I was having trouble with my 5X12 utility trailer after I upgraded the trailer lights to LED. I thought it was a grounding issue but no matter what I did the truck would not recognize the trailer and apparently unless recognized, does not send light signals to the connector. I...
  3. Koppster

    Another Oil Thread

    Axe, I used the Mobil 1 FS on my last oil change, paid about ~$28 for the 5 quart container and I buy Wix filters through RockAuto. I have noticed occasional updates on the GM Dexos site: https://www.gmdexos.com/brands/dexosr/index.html Rick
  4. Koppster

    Service Transmission Now, Unable to Shift Soon

    2023 ZR2, bought Dec 22, 35558 miles. Got this warning two days ago. The articles and posts I read ranged from Gear Shift Selector Module to Transmission Control Module or Battery, apparently it is a known common issue. I decided to take it to the Dealer. In my case it turned out to be the...
  5. Koppster

    Dead Battery on 2023

    You have to put it in brake maintenance mode to retract the rear calipres. Look on YouTube
  6. Koppster

    🔧How-To: Install Amber Grille Lights for ZR2(Easy installation)

    Installed mine yesterday. I am pleased, generally easy to install and they work. I broke the red slider on the original headlight connector in the process but that is on me. Only negative I can say is the stick on wire routers do not stick very well. I love the look, I put them in the first...
  7. Koppster

    Dead Battery on 2023

    FWIW, in Texas regular batteries last right at 36 months on average. AGM batteries tend to make it to 48 months. There's always exceptions but this has been my experience and observation.
  8. Koppster

    Ready Lift 1.5" Leveling Kit

    Put one on my kid's 2021 Trail Boss, zero issues. Quality product IMO. Not my choice for my ZR2, I wanted more than level, I wanted lift + level. The Peak 2.25" met that requirement on the ZR2 and I'm happy with it too.
  9. Koppster

    New Oil Viscosity Recommended

    Well the GM DexosR site listing has been updated, some of the Mobil 1 oils that were on it before are no longer on the list to inlcude Mobil1 FS (which I just purchased for my next oil change), Mobil1 ESP and Mobil 1. Brand Name Supplier Specification Viscosity License Number EDGE...
  10. Koppster

    New Oil Viscosity Recommended

    If you're referring to Mobil 1 FS (European Car Formula); it is on the GM Dexos R listing. I just bought some for my upcoming first home oil change following the dealer change made during the "test". See link previously posted by others below: https://www.gmdexos.com/brands/dexosr/index.html...
  11. Koppster

    anyone put 35’s on?

    I have the same Mickey Thompson's on my 23 and I love them, see the thread linked below. I put the Peak 2.25 kit on mine and Method 305s with zero offset. Had to do some trimming to get them to fit. You can do the same trims yourself using Axe's post (referenced in the thread)...
  12. Koppster

    Tire Size Change Recalibration

    Thanks all for the inputs; does not appear to be an affordable solution
  13. Koppster

    Tire Size Change Recalibration

    Thanks Axe, any particular brand? I have an expensive analyzer but it the ECM blocks out the tire change on my 23.
  14. Koppster

    Tire Size Change Recalibration

    Good Morning, Has anyone had the dealer recalibrate the speedometer after installing larger size tires? If so, how much did they charge you. I ask because extended warranties discuss lift and tire size changes in their contracts. Before any snide comments, yes, I searched the Forum and did...
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