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  1. R

    08 Denali -misses at idle

    i already run 93 ...havent tried the Mystery Oil yet. how much of the oil did you use??
  2. R

    08 Denali -misses at idle

    just recently purchased an 08 Denali AWD 6.2. Very pleased with the vehicle as a whole. couple issues with it, one being it has a what i feel to be a miss at idle. It runs smooth under acceleration and cruise. Just cant clear the miss at idle... new plugs and wires just installed. Im sure...
  3. R

    newb

    been on the site hundreds of times looking for answers. Now i have a 08 Yukon Denali 6.2L and im ready to shoot it!! hopefully i can pick some brains

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