PCM 1.23 Oil Change Eric???

Putting the boat away for the winter. I decided to change the tranny oil as well. I removed a bit over 1.75 litres out of the tranny but it appears to be straight oil as it is not the red colour of ATF.



I had already purchased some ATF Dexron IID for the change. Because I will now be converting to ATF is there any extra precautions I should take?

I have searched all the previous posts on trans oil changes and come up with a capacity of 2 US quarts which equates to 1.9 litres. The trans may have been a bit low on oil as I was always checking it incorrectly without the engine running so 1.75 may be all there was in there.



In one of the old threads Eric mentioned removing the return line to the cooler and pumping the oil out.

Eric is this still a option with all the oil removed as there still may be some residual oil in the pump. Or should I overfill the trans with ATF to help flush out the old oil and then pump out this way.

Also Eric one more question while the clock is running is there a contamination problem with the straight oil & ATF. Should I can the whole idea and just run the straight 20 weight? oil until I totally disassemble trans and clean. I would hate to cause a trans problem by doing it this way. I do not think I would disassemble the trans just to convert to ATF anyway. The tranny was running fine no noises or dragging at idle.

Note:- will settle the bill in beers at GL

Thanks Eric will flush as suggested and then refill again.

Is there any danger in using the return hose to pump out the fluid? How long should you run it once oil stops coming out?

Thought I would post pic of syringe it will hold 500ml about a pint in US volume.