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  1. J

    Mobil 1 0w40 - 14,540 mi - 2007 750i - BLS and Wix

    Since I bought so many Wix kits when they were on super sale at Amazon I decided to send this sample to both Blackstone and ALS for comparison, planning to only send to ALS from now on. The results look great and very comparable between the two which is nice to see. I would like to see fuel and...
  2. J

    Mobil 1 5w20 - 7,127 mi - 2003 F150 5.4L

    I ran Mobil 1 5w20 for the first time in this after using GTX 5w20 since it was new. I can't say it did a bad job, but not any better than the Castrol. Also the 100 cSt of 7.37 seems pretty low. It has M1 5w20 EP in it this time and I was planning on 9k if this one looked good. That seems...
  3. J

    Mobil 1 0w40 - 14,828 mi - 2007 750i

    This is the second sample that was tested for this engine. There was also a short run of Synpower 5w30 in between the two that wasn't tested since it won't be used again. The 0w40 did a great job as far as I can tell. Nickel is kind of odd but I don't know what that might indicate. Silicon was...
  4. J

    Castrol GTX 5w20 - 5,383 mi - 2003 F150 5.4L

    This is the first UOA that has been done on this engine. Castrol GTX 5w20 was used since new with OCI average around 5,000 mi. The additional quart was added around 3,700. Comments: The Castrol GTX appears to have worked well up to 62,454 miles on your Triton V-8. This oil was run right at the...
  5. J

    BMW Synthetic 5w30 - 16,817 mi - 2007 750i

    I thought this one would be interesting since I don't see many (or any) OCI's this high. CBS data in the vehicle indicated 3000mi remaining when this sample was taken. I wasn't willing to trust it that far beyond 15k, but the data seems to show it was pretty much on the money. I went with Mobil...
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