Jet Pump Oil (587 cc)

[SurfBeat]

A few days ago while surfing the net I found a video wherein the narrator was changing the Jet Pump oil, and I recall he was using Mobil One.

Something popped up before I could take notes of the exact oil he was using, so, to ensure I use the bestest oil that will keep my 93 GTX out of my garage and on the River where it belongs, I would appreciate any and all recommendations pertaining to the type of oil I should use in my Jet Pump.

I did a search with negative results, so, herewith is a thread on point.

 

[LouDoo]

Mobile 1

I use Mobile 1 LS 75W90 full synthetic and have had no problems. It's not cheap, the last time I purchased it was $10.00 a quart. I change my oil twice a season. A quart should last 3-4 seasons. It also has the advantage that it smells a lot better than the original oil.

Lou

 

[Dr Honda]

any 75w-90 synthetic will work.

 

[SurfBeat]

At Wal-Mart today I noticed that their brand of Gear Oil "Super Tech" is rated 75-140 and is full synthetic, while the Super Tech that is rated 75-90 is a blend.

Not wanting to start a Jet Pump oil colloquy as has been done repeatedly with SD engine oil, nonetheless, I wondered, can I use synthetic Gear Lube 75-140 in my 93 GTX,, and if not, why not?

I am presuming that if I can't, it is so because of the viscosity?

I would just like to know.

 

[SurfBeat]

I should have known to check Dr. Honda's posts before wasting members time reading my question.

As Dr H. pointed out to a reader who asked the same question as I under a different heading some-time back, Sea Doo's "need a thinner oil" than 75-140, because the 140 viscosity will have the "constancy [sic] of Honey," therefore, don't use anything other than "synthetic 75w-90."

Notwithstanding the very helpful advice set forth above by Dr. H, nonetheless, I still have one question! The 75-90 Gear Lubricants that I have come across at Auto Zone and other auto parts stores, except for Mobil 1, are blends, not full synthetic.

On that note, will the blend suffice?

On a side note, since I rarely purchase anything at Wal Mart that does not have a major label because in my opinion, Wal Mart carries significant inferior quality merchandise, out of curiosity I asked the auto manager at WM, "what manufacturer does WM get its oil from?" The manager, pondering momentarily, responded, "that is a good question, let me get you an answer."

He then reached into his pocket to fetch his Blackberry, logged onto the WM headquarters and in about five minutes had an answer to my question: "WM gets its oil from either Pennzoil or Quaker, depending on which company gives it the best price."

So Grasshoppers, if you purchase a lubricant that bears the Super Tech name, you are actually getting Pennzoil or Quaker, thus saving a few bucks.

 

[Dr Honda]

The synth blend will be fine. (it's what I have been using)

Honestly, they recommend a full synth because SeaDoo knows that people don't do regular maintenance. If you change it once a year, anything will be fine as long as it's in the proper viscosity.

 

[SurfBeat]

Now anyone that has a question regarding what type, brand of Gear Lubricant to use in their Jet Pumps has all the info they will ever need.

Hopefully I did not start a ongoing Jet Pump oil colloquy!!!!!!

To put my final period on this Post, I purchased Wal Marts Super Tech Gear Lubricant (blend) for about $4.50, about $2 less than Valvoline blend sold at O'Reilly's auto parts store and a tad less than 1/2 for the full synthetic.

On a side note, Sea Doo peddles their brand for $14 and the 6 oz supply is purportedly sufficient for about (3) jet pump oil changes. In stark contrast, the quart that I bought should be enough for approximately fifteen additional changes than the Doo brand. (32oz = 1 quart)