Extraordinary!
The AMSOIL CTD Saga Continues
Last time he sent oil in for analysis at 65,500 miles people could scarcely believe their eyes, yet the lab said "re-sample in 7500 miles." Brad knows AMSOIL is made of pixie dust, unicorn tears, and Abe Lincoln's beard hairs, brewed in an oak barrel made from the remnants of the USS Liberty, so he went to 75,377 miles (on the same oil) and sent the oil in again for analysis.
Brad has officially gone TEN TIMES as long on an oil change as the manufacturer recommends thanks to the robust additives and high quality base oils of AMSOIL European Formula synthetic engine oil.
Tuned CTD, only filter changes and topping off for the last 75,377 miles. Anyone want to take bets on what they'll say on the next report?
Only thing really remarkable about this analysis is viscosity. For the first time, we see viscosity flagged, although it's still normal. Oxidation and soot accumulation is beginning to take its toll as the oil filter isn't able to capture contaminants below ~25 microns. As a result, viscosity has cleared the 12.5 cSt threshold into SAE-40 territory. His oil is officially a 5W-40, although still notably "thinner" than most 5W-40 oils are when new.
Silver was flagged, cause unknown, although I occasionally see 1-2ppm on some reports with this oil which promptly goes away. Base number continues to slowly creep downward, but Polaris Labs will keep recommending another 7k miles as long as that stays above 2.0. Oxidation may be the first metric to give him a reason to change it?
Actual wear was SO little that some of the particle counts went down! The reason for this is that some oil is lost over the duration, and topping off dilutes that. Just goes to show that the engine wears less than it burns. Fantastic.
Will he make it to 100k?
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Brad has officially gone TEN TIMES as long on an oil change as the manufacturer recommends thanks to the robust additives and high quality base oils of AMSOIL European Formula synthetic engine oil.
Tuned CTD, only filter changes and topping off for the last 75,377 miles. Anyone want to take bets on what they'll say on the next report?
Only thing really remarkable about this analysis is viscosity. For the first time, we see viscosity flagged, although it's still normal. Oxidation and soot accumulation is beginning to take its toll as the oil filter isn't able to capture contaminants below ~25 microns. As a result, viscosity has cleared the 12.5 cSt threshold into SAE-40 territory. His oil is officially a 5W-40, although still notably "thinner" than most 5W-40 oils are when new.
Silver was flagged, cause unknown, although I occasionally see 1-2ppm on some reports with this oil which promptly goes away. Base number continues to slowly creep downward, but Polaris Labs will keep recommending another 7k miles as long as that stays above 2.0. Oxidation may be the first metric to give him a reason to change it?
Actual wear was SO little that some of the particle counts went down! The reason for this is that some oil is lost over the duration, and topping off dilutes that. Just goes to show that the engine wears less than it burns. Fantastic.
Will he make it to 100k?
