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  outboard lower unit lube frequency

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Author Topic:   outboard lower unit lube frequency
chrisc posted 06-27-2001 11:45 PM ET (US)   Profile for chrisc   Send Email to chrisc  
I just bought a 1997 30 hp Evinrude for my 13ft Classic. The motor didn't come with any literature, so I'm kind of clueless about how often I should be changing the Gear Lube in the lower unit. I use the motor (and boat) in both salt and fresh water.

thanks in advance for you help! I'd hate to trash the motor out of ignorance.

triblet posted 06-28-2001 12:00 AM ET (US)     Profile for triblet  Send Email to triblet     
You should try an Evinrude dealer to see
if they can get you an owner's manual.
There's lots good stuff in there.

I change mine every 100 hours.
If the motor was used, change it now, before
you run it. That way you KNOW it's good.

Chuck

chrisc posted 06-28-2001 12:35 AM ET (US)     Profile for chrisc  Send Email to chrisc     
Thanks Chuck. Good advice. I was just hoping someone had someone could get me started. I'll change the lube this weekend since I'm planning a full week of boating fun. I've got some SAE 80-90 lube. Any idea if that is standard for modern outboards, or should I be using something else?
Bigshot posted 06-28-2001 10:39 AM ET (US)     Profile for Bigshot  Send Email to Bigshot     
If you live in colder climates, do it every fall before you winterize. If water is in there and it freezes, good by lower unit. Go to marine sytore and but a tube or 2 of the lower unit lube. is your lube marine or auto. If marine use that.
triblet posted 06-28-2001 11:17 AM ET (US)     Profile for triblet  Send Email to triblet     
You should use OMC's recommended lower unit
lube. They have two different ones, at least.
There's Ultra HPF (which is what my '97 90HP
specs) and another, older one. You need that
owner's manual.

Good point, bigshot, about freezing climes.
I'm in Sunny California.

Chuck

Bigshot posted 06-28-2001 01:35 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
i run synthetic but it does not mix well with reg oil so if it had reg in it, run regular.

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