Hey everyone, this is a very silly question, but I am going to change the gear lube on the lower unit on my new to me 1999 Johnson 150 (J150PLEES) this weekend. I have done research on how to do it, etc.
I am planning to use quicksilver 90 gear lube to replace the old oil. Will this suffice? I know some people use synthetic, but don't know enough about changing lower unit oil to go that route yet, unless someone can confirm this should be fine and recommend a product?
This next question is quite silly, but I want to make sure i'm doing it correctly. I plan to also change the gaskets on the drain plug screws when I do this, but don't feel like spending $8 for one OEM gasket. Does anyone have recommendations for aftermarket options or should I just purchase some from amazon or elsewhere?
Thank you in advance, any advice/input is appreciated.