Has anyone ever thought of running total 10 w50 racing

[eightsandaces]

IMO, if you're tracking it, the oil issues I'd be concerned with are the starvation circumstances. Since my 2.5 came with 0-40 from the factory, it would seem to me that 20-50 might actually do more harm at start up. When you think about it, that dry start-up is the killer and where you need instant viscosity. Frequency has always been a key factor in oil changes, I don't think synthetic has changed that. Oil is designed to get dirty and hold said dirt in a colloidal suspension. It makes sense that the fresher the oil is, the more cleaning capacity it has in this particular regard. Other than expending money, I can't see any problem in changing the oil too much, in fact, especially in M96 engines, it just might be the difference in a long happy engine life.