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  1. M

    AcDelco spark plug help

    I would like to replace the spark plugs in my 2017 Cruze LT HB with a colder heat range iridium plug. Rock Auto shows the following but I can't seem to find any info on the differences. I would appreciate any help. 41-151, 41-153, 41-156 Paul
  2. M

    2012 CTS OE Fill 762 miles

    I recently purchased a 2012 Cadillac CTS coupe, the practical won out as I did not get the V... that and I could not get over the extra 15k and being my daily driver I wanted a bit better mileage. I ordered it just the way I wanted and it was 6 weeks to the day to my door. I have always done a...
  3. M

    09 Subaru WRX 3100 miles on 10w/30 GTX

    I have learned a lot from reading these forums over the last few years so I thought I should post the results of my UOA for general information. So far things look very good to me
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