crazylt1

Where to you check and/or add oil to the Mercury #6 dry sump drives?

What is the procedure for changing the oil?

I just bought my first boat with #6 drives, and everything is very different. I don't see a drive fluid resevior anywhere. I'm guessing there is a oil fill plug somewhere and they just need to be filled to the top?

Thanks in advance for your responces!

txriverrat2001

Lower half - STBD side.... drain plug bottom ... where the top meets the lower half, same side - vent plug - fill from the bottom up to this vent plug. You do not fill the drive completely full of oil like a Bravo. And use Torco oil - DO NOT USE Merc High Perf oil....

delsol

why torco and not merc hi perf??

302Sport

Because that's what mercury says and if they say it then it must be right. maybe you guys should call the man who invented the dry six and ask what oil you should run. WWW.weismann.net

delsol

sorry my bad -- didn't catch the dry sump part

according to my merc manual merc hi perf is what they are calling for for a wet #6 -- has this changed for the wet ones?

txriverrat2001

Dry sump 6's have a pump in the lower that pushes the oil through the drive - Wet Sump 6's are just that - wet to the top. Merc High Perf oil is a thicker viscosity - Torco is similiar to motor oil and a thinner viscosity to be pumped via a gear pump in the nose of the lower half.

delsol

thanks

302Sport

if your running hi horsepower the gears hold up much better if your running a thicker oil than say torco.

JJONES

30wt.oil is oil