Question: Using "used" oil for top up oil?

[bigt61]

Originally Posted By: demarpaint
In a beater yes, in one of my better rides, no.
Agree. In the OP's case, it will be fine - especially with the lightly used synthetic. Smart plan IMO.

 

[dubber09]

Why re-use oil? To save a buck? To minimize natural resources use? For argument sake? No access to fresh oil? Why?

Personally, I run 4-6k miles OCIs with PP 5w-20/30 on 2 cars. One gets annual OC (4k mi) and the other 3 OCs a year or every 6K mi.
Not a penny pincher but save where I can - doing work myself and buying on sale when I can.
I stick to the slogan - you take care of your car, car takes care of you.