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  1. Y

    Real MPG on Denali?

    I think we have averaged 17mpg for the life of the vehicle so far (10k miles). On road trips we will get about 22-23 mpg. We have concluded we have to run premium (92) for it to run proper. We were getting pre detonation running reg (87). Have not had any issues since only using the 92.
  2. Y

    2016 rough idle

    took my 2016 yukon denali to the dealer for the second time. this time they did the seat and sterring wheel measurements and said they were within tolerances of a normal vehicle. Seat was 2mg, and sterring wheel @ 8mg. I have since emailed GMC about my situation. Waiting for response. I...
  3. Y

    2016 rough idle

    Been sitting at the airport waiting to pick up my buddy and his wife and his thing shakes like a mofo in park. Bulletin said it only happens in drive or reverse. Awesome....
  4. Y

    2016 rough idle

    This explains how they "should" be able to fix the rough idle.... http://www.revbase.com/BBBMotor/TSb/DownloadPdf?id=196420
  5. Y

    2016 rough idle

    I just bought a '16 Denali and took it back to the dealer for a few things (480 miles) and one of them was a rough idle. Mike is when I am in gear like at a stop light. I described it to the dealer as a "miss" thy said it had no codes and to bring it back when they had more time and they would...
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    NORCAL SS Kit info/tech on how to level the rear of a 2015 up GM SUV

    What does the 1.5-4" mean? How is it adjustable from 1.5-4"? Thanks!
  7. Y

    Lowering and towing??

    hello all. Just picked up a 2016 Yukon Denali SWB 4wd. Was thinking of lowering it a bit. Did some reading and maybe one of NorCal's kits. Question is: how will this effect my towing capabilities? I tow a 5.5k lb boat through out the year and just don't want to mess anything up with lowering...

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