Gear Lube? Need a straight forward answer.

JNormV163

Seaman
Joined
Jul 14, 2013
Messages
66
1991 Sunbird corsair 19' 4.3 OMC cobra Sterndrive. I keep reading all these different answers for what type of gear lube to use in these. I've always had Mercruisers so I just use the Hi preformance 90. I read that you can also use it in these OMC's. Is this true or does OMC command a different oil? Got plenty of Merc gear oil so I'd rather not have to go buy more. Thanks guys.
 

JNormV163

Seaman
Joined
Jul 14, 2013
Messages
66
Thanks, definitely didn't want to ruin anything but I didn't see an issue with using it. Just realized I spelled "high" as "hi" I think I'm getting dumber and dumber. Bummer.
 

Lou C

Supreme Mariner
Joined
Nov 10, 2002
Messages
11,802
I've used it for 10 years in my Cobra and it works great
 

superbenk

Commander
Joined
Oct 27, 2008
Messages
2,022
Should be fine. It's gonna be better than anything OMC recommended 25+ years ago.
 

jerryjerry05

Supreme Mariner
Joined
May 7, 2008
Messages
17,923
It will work.
OMC used a 75/80 in the Cobra when they first came out.
ANY 90 from any manufacturer will work.
 
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