I need to top off my 2009 Subaru Impreza transmission oil.
I read the manual and it states under the "Recommend grade and viscosity"
Each oil manufacturer has its own base oils and additives.
"NEVER USE DIFFERENT BRANDS TOGETHER"
It states to use GL5 75w - 90w.
I'm guessing I have to go to my Subaru dealer and purchase the subaru GL5 grade oil. Is that correct?
Or can I use a different brand and buy it locally and top of the oil?
I don't want to mix and match. what do you recommend?
thank you for your help!!