Hello:
Have a 2015 Outback.
a. How "necessary" is it to use the Subaru labeled, from the Dealership, Coolant ?
Anything magical about it, or the typical 50-50 Prestone pre-mixed will work just as well ?
b. anything in the Posts or elsewhere regarding excessive coolant loss ?
Level in the overflow jug seems to be going down quite fast.
What might be some of the causes for this ?
Thanks, Bob