Looks like TC-W3 Oil in Tank

[Midwest Dave]

93 GTX has blue green oil in the tank so I am guessing it's TCW3 and should come out. Hopefully this hasn't damaged the cylinders. Also have a 95 GTS bought from the same guy and it has a yellow or golden colored oil in it that I'm guessing is mineral oil and okay for the model year.

Short of pulling the tank it looks like siphoning most of it and then removing the lower output hose is the way to drain? Might just drain them both just to be safe. There's no way to get it all out, is some residual oil going to gel with the correct oil. Finally, is full synthetic less likely to gel than mineral or should I go with mineral since it is the recommend type for the year and of course cheaper?

Any comments or advice would be appreciated.

 

[POPPS]

93 GTX has blue green oil in the tank so I am guessing it's TCW3 and should come out. Hopefully this hasn't damaged the cylinders. Also have a 95 GTS bought from the same guy and it has a yellow or golden colored oil in it that I'm guessing is mineral oil and okay for the model year.

Short of pulling the tank it looks like siphoning most of it and then removing the lower output hose is the way to drain? Might just drain them both just to be safe. There's no way to get it all out, is some residual oil going to gel with the correct oil. Finally, is full synthetic less likely to gel than mineral or should I go with mineral since it is the recommend type for the year and of course cheaper?

Any comments or advice would be appreciated.

I,m not sure why you want remove the oil because of its colour? Companies add dies to their oil, in fact, we use coloured oil because it's far easier to find leaks. I have been racing, 800 LTD class for decades, rev'ing approx 7700, far above stock.

We always run synthetic coloured oil, and the cheapest, in fact, in the winter, I have purchased shell skidoo synthetic, 4 plus gallons, at almost half the cost of BRP or other expensive brands. It's got a nice blue die. Of course racing we have encountered many engine failures racing, but none of them had anything to with the colour or grading ( always synthetic), of the oil.

No need to pull the tank, needless job,unless the tank is leaking, (later dumb plastic tanks), you can add a diff coloured oil/ synthetic, and let it settle in the tank, and if you are really energetic, you can open the 8 mm bleed valve below the pump, just have a bunch of rags to absorb the oil.

 

[mikidymac]

I,m not sure why you want remove the oil because of its colour? Companies add dies to their oil, in fact, we use coloured oil because it's far easier to find leaks. I have been racing, 800 LTD class for decades, rev'ing approx 7700, far above stock.

We always run synthetic coloured oil, and the cheapest, in fact, in the winter, I have purchased shell skidoo synthetic, 4 plus gallons, at almost half the cost of BRP or other expensive brands. It's got a nice blue die. Of course racing we have encountered many engine failures racing, but none of them had anything to with the colour or grading ( always synthetic), of the oil.

No need to pull the tank, needless job,unless the tank is leaking, (later dumb plastic tanks), you can add a diff coloured oil/ synthetic, and let it settle in the tank, and if you are really energetic, you can open the 8 mm bleed valve below the pump, just have a bunch of rags to absorb the oil.

Because if it is blue or green it is 99.9% sure to be TCW-3 oil which is wrong for the seadoo engines and needs to be removed.

 

[mikidymac]

The easiest way and most effective is to drain the oil tank and remove it.
Rinse the tank out with gas.
Remove the oil filter.
Suck as much oil as you can out of the 12mm lines running into the crankcase.
Install a new oil filter.
Replace the clean tank.
Fill tank with the correct oil.
Open the bleed screw on the oil pump until the new fresh oil comes out.
Close the bleed screw, Don't over tighten it.
With the ski idling hold the oil pump arm wide open to pump the majority of the oil oil out of the little 3/32" oil lines.

Now is the perfect time to do a little preventative maintenance and replace your little 3/32" oil lines from the pump to the intake manifold and the oil tank grommets.

To the OP: the gold oil in the other ski is more than likely the seadoo mineral oil.
Both of your skis can run any API-TC rated mineral oil, semi-synthetic or full synthetic oil. The big thing is it needs to be API-TC rated and don't mix different brands of ol.