Originally Posted by
Wallythacker
So in theory if we had a way to purify used synthetic oil and replace the additives it had we have "new" oil ready for another 15k miles?
I think used oil is being marketed under this premise.
__________________________________________
View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)