i took my car to a subaru dealer today to replace stock gear and rear diff. oil with redline 75w-90. it has 12000mi on it.
after got home, i check on the gear oil level. Wah! it's at least 1qt overfilled.
i've heard it's no good to overfill gear oil. but it's a subaru dealer. is that done on purposely, and correctly?
my wrx is 5speed manual transmission.
i'll call the dealer tomorrow to find out why.