Mercruiser/Quicksilver 20W-40 oil part number

[topcat112]

Re: Mercruiser/Quicksilver 20W-40 oil part number

yea there is a cast iron 6x4 box on top of the exhaust manifold with a huge vent back to the outdrive. I guess I will have to use the Mercruiser oil form now on. I just hate to pay their premium.

Topcat112

 

[agallant80]

Re: Mercruiser/Quicksilver 20W-40 oil part number

I am pretty sure any oil will work. I just put Mobil1 in to my boat. It ran fine.

 

[topcat112]

Re: Mercruiser/Quicksilver 20W-40 oil part number

I found some Mobil 1 10w30. Anyone use this weight? The only 40w I would find in Mobil 1 was 0w40. I was a little afraid of the 0w.

 

[Don S]

Re: Mercruiser/Quicksilver 20W-40 oil part number

You need to start a new thread of your own topcat. Include your engine information as well.