Hi guys, im new to the forums and to boating for that matter. i just bought an old glastron with a 1977 70hp Evinrude model 70773S and i need to know what type of oil to put in the lower unit. thanks
As long as the oil is rated for the GL-5 performance, marine use, and you are not running an electric or hydraulic shift this stuff will work. I use it in my motors and it does fine.
While you're getting your Marine Lower Unit Oil at Walmart, buy the small Hand Pump used just for that purpose, to pump the oil into the Bottom Drain Hole.
I agree 1000% with robert!!! It makes things much easier to thread into the port and pump away compared to squeezing oil out of a tube and maybe getting it all out.
