what lower end oil do i need

[brianis]

so ive got a 63 mercury 500 winterizeing it first time doing lower unit oil what is supposed to go in it can i get some from walmart local boat shop says you need this 12 bucks a qt. but cant tell me what exactly it is and of coarse no boat shop close to me just wonderful walmart.

 

[ufm82]

Re: what lower end oil do i need

80-90 hypoid is the listed oil but Quicksilver Premium L/U oil is better than the 90w.

 

[emckelvy]

Re: what lower end oil do i need

Wal-Mart should carry Sta-Lube or other aftermarket brand of Hi-Vis Marine-Grade gear oil which will lubricate your outboard's lower end just fine, for under $5/qt.

The $12/qt oil is Good Stuff, but it's rather overkill for your classic Merc.

Note that although you can use regular 'ol automotive gear oil in a pinch, marine-grade oil has special additives, formulated for the harsh marine environment.

HTH..........ed

 

[joed]

Re: what lower end oil do i need

Once the oil is in the unit it's sealed. How does the "harsh marine environment" come into play?