Volvo Gear Oil

[Red Monster]

I run 80w 90 gear oil (non-synthetic) in my 29o stern drive leg. Anyone running something other (less expensive) than the Volvo gear oil?

 

[Wild Bill]

I have never had any regrets using Redline!

 

[claymcpher]

just use any 80/90 marine gear oil that is compatible with your drive, DO NOT use automotive gear oil cause it has a different expansion rate and could blow seals

 

[SteelyDan]

I ran penzoil straight 40 wt

 

[23Hourston]

My understanding is its the same as the engine unless it's a dp. True?

 

[Wild Bill]

Manual
http://www.mybayliner.co.uk/boatmad/280285290.pdf

 

[wolf]

I use sierra semi synthetic looks like merc stuff and is very good

 

[Red Monster]

Okay, I'll of course use marine gear lube, but any brand is probably about as good as the next. Thanks!

 

[Wild Bill]

Okay, I'll of course use marine gear lube, but any brand is probably about as good as the next. Thanks!

You looked at the manual didn't you? Page 18 I beleive

 

[Red Monster]

Ahhhhhhh... that's very interesting. The manual does say to use engine oil, but what if water gets inside? I fixed a leak last year, and the gear lube I was using did indeed emulsify the water inside, something an engine oil won't do?

 

[Wild Bill]

I think you will be just fine with either gear oil or engine oil.
Engine oil emulsifies with water just fine, you should have seen what I drained out of the chain cases of my skid steer.