OK to use Merc drive oil in OMC SX??

[94OMC]

Hi,

Is it ok to use the blue Merc drive oil in an OMC SX drive?

 

[Bondo]

Re: OK to use Merc drive oil in OMC SX??

Ayuh,.......... Should be Fine............

The only oddballs I know of are some of the Volvos use Engine Oil,.....
Instead of a Hy-poid Gear Oil............

 

[94OMC]

Re: OK to use Merc drive oil in OMC SX??

The owner's manual calls for OMC ultra-HPF but I didn't see any of that at the store...

 

[imported_TheMan]

Re: OK to use Merc drive oil in OMC SX??

Probably because OMC is out of business..

 

[Lou C]

Re: OK to use Merc drive oil in OMC SX??

The Hi Vis and Ultra HPF stuff is still sold, look for an Evinrude/Johnson dealer because they are used in outboards.
You can use the Merc hi performance stuff in Cobras with the dog clutch (86-93), I've been using it on the recommendation of my mechanic and it's been fine. The 94 may be a joint venture (OMC+VOLVO) with the cone clutch so they are different, I'd use whatever Volvo specs if that's the one you have. They have a hump on the top of the drive instead of being flat across like the pure OMC model Cobras.

 

[94OMC]

Re: OK to use Merc drive oil in OMC SX??

Does anybody know the weight of the Mercruiser Hi-performance + oil?

Also, I do have the SX case with the hump on top.

 

[Don S]

Re: OK to use Merc drive oil in OMC SX??

Volvo uses a GL-5 Synthetic gear lube in the SX.
The Merc Hi-Performance meets that criteria and is the same weight as the Volvo gear lube.
You don't have the "Hump" mentioned above, that was on the older King Cobra's (Before Volvo/Omc joint venture) and was used on the 460 Ford engines.
The SX and DP-S drives were OMC style case and housings, with all Volvo style gears inside.

 

[94OMC]

Re: OK to use Merc drive oil in OMC SX??

Don, thanks for the confirmation.

I'm sorry, I thought the "hump" was the raised area that houses the F-N-R gears. My case does have that "hump."