MolaKule
Staff member
I disagree. With that sample size it IS statistically significant.quote:
No offense but if these observations are only based on these 30 application, it is worthless, why? because for it be scientific, you need to have two exact samples (in this case, same exact engines with same exact driving patterns, which is impossible) then rinse one with Semi Synthetic oil and the other with conventional oil.
Rinsing with a non-LL, non-startup, non-BS conventional oil is the best approach for rinsing since there is no intereference with the special RX esters in getting to the metal.