50,000k on M1? Please, according to BITOG lore all it takes for a good synthetic is one or two OCIs for a spotless engine
Basically most on here that automatically recommend PYB, PU, M1 etc. for all engine cleanliness questions, mindlessly repeat what is written on the bottle by the marketing departments.
Basically most on here that automatically recommend PYB, PU, M1 etc. for all engine cleanliness questions, mindlessly repeat what is written on the bottle by the marketing departments.