Here is my sample of Amsoil SS 0w-20, one year in service. 80% Hwy/20% city. MM light calls for oil change around 6000 miles (it assumes conventional 5w-20). This was with a Fram Ultra filter. This oil does a nice job with my one year interval but I have changed out to M1 EP 0w-20 with M1 filter simply due to it being 1/2 the cost. I do not plan on trying to go longer than a 1 year OCI. This time next year we will see how M1 EP compares.
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miles on oil 9,538 7,780 5,842 6,358 Universal miles on unit 91,795 82,257 74,477 68,635 Averages sample date 08/30/2015 08/26/14 10/26/13 03/10/13 make up oil added 1/2 1/3 0 0 OIL Type ASM 0w-20 ASM 0w-20 MC 5w-20 HG 5w-20 Aluminum 3 3 2 2 4 chromium 0 0 0 0 0 iron 6 6 4 5 9 copper 1 1 2 2 2 lead 0 0 1 0 1 tin 0 0 0 0 1 molybdenum 135 116 23 43 75 nickel 0 0 0 0 0 manganese 1 1 1 0 1 silver 0 0 0 0 0 titanium 0 0 0 0 1 potassium 1 8 0 4 3 boron 64 74 49 3 47 silicon 18 19 15 9 13 sodium 15 8 0 3 46 calcium 3387 3434 2283 2192 2127 magnesium 11 16 12 14 165 phosphorus 592 676 760 688 689 zinc 729 770 794 799 812 barium 0 0 0 0 0 SUS viscosity @210F 54.8 53.9 48.2 49.5 cSt viscosity @100C 8.70 8.45 6.72 7.12 Flashpoint 350 430 380 375 Fuel % 1.8 <0.5 <0.5 <0.5 Antifreeze % 0.0 0.0 0.0 0.0 Water % 0.0 0.0 0.0 0.0 Insolubles % 0.2 0.2 0.3 0.3 TBN 3.3 4.2 TAN
