Pennzoil Ultra Platinum 0w/20 with Wix/Napa Gold filters. -been relentless about 5k services, @45k now.
-just received my first ever Blackstone Lab analysis, TBN numbers were still extremely good. Blackstone advised me to push my next service to 7500 miles.
-the oil that was sampled, was still a very light Carmel color - I feel guilty throwing away oil that still looks this good
Pennzoil Ultra Platinum 0w/20 with Wix/Napa Gold filters. -been relentless about 5k services, @45k now. -just received my first ever Blackstone Lab analysis, TBN numbers were still extremely good. Blackstone advised me to push my next service to 7500 miles.
-the oil that was sampled, was still a very light Carmel color - I feel guilty throwing away oil that still looks this good