[Jno89]

Good morning guys

My friend owns a sleek line xtc and has asked if I can service it. I am a mechanic but have rarely worked on a ski boat. Can anyone steer me in the right direction as to what oil to use for the engine and also what oil and fuel filter please?

He also says it has a gearbox where it has toward,reverse and neutral. What oil do you guys run in that compartment?

TIA guys any info would be very grateful

Jonno

[Feetfirst]

I use Penrite 15-40 full synthetic high zinc oil in my mercruiser black scorpion.

Filters may be different.

[Jno89]

Thankyou mate.

Does your boat have a velvet drive gearbox ?

[Feetfirst]

Just a good quality dextron 3 oil.