Servicing my 1994 GTX jet pump

[Rivergator]

I was wondering if anyone knows of an equal or better substitute synthetic oil that I can buy at an auto parts store, West Marine or other source that I can use instead of the Sea Doo Jet Pump Oil P/N 293 600 011?
Also what is the proper way to check the oil level in the cone? Cone facing up, cone facing down or cone in the horizontal position (normal position when pump is installed in Sea Doo)?

 

[alldodge]

I was wondering if anyone knows of an equal or better substitute synthetic oil that I can buy at an auto parts store, West Marine or other source that I can use instead of the Sea Doo Jet Pump Oil P/N 293 600 011?
Also what is the proper way to check the oil level in the cone? Cone facing up, cone facing down or cone in the horizontal position (normal position when pump is installed in Sea Doo)?

I use amsoil or Mobil 1 synthetic gear lube 75w-90 and fill it with the hole facing up to the top.

The way I do it is remove the plug and face it down, let it drain for a hour, then turn it up and refill. Only holds 4oz

 

[wrench 3]

I use Sierra synthetic gear lub 18-9680 http://www.iboats.com/Sierra-Synthe...9481473--session_id.653708418--view_id.486019
The 18-9650 on that link is actually a synthetic blend.

 

[Rivergator]

Thanks guys, I appreciate the advise!

 

[Jeff Walkowiak]

When you drain it, if you see water in it, pull the pump and rebuild it.