1990 johnson 70 hp

[muddinmann67]

Ok guys I have a 90 70hp johnson electric tilt and trim, what gear oil should I be putting in the lower unit? Thanks!

 

[Cat nip]

I use amsoil 80w90 mariene synthetic gear lube. Works great.

 

[flyingscott]

standard 80w90 marine lube works just as well and a little cheaper. Your choice