93 mote carlo and 97 montecarlo 640 and 770 engine oil type

[jststrd1]

Quick question. I picked up 2 skis and was wondering what oil to use for the 50 to 1 mix. It is obvious the manual says tigershark oil but gives no type or rating to select a different brand. Can any one give me an idea as to what type of oil? Can I use yamalube??

[lynnboy021]

Re: 93 mote carlo and 97 montecarlo 640 and 770 engine oil type

i just use the walmart outboard oil where the boat stuff is on all my toys never had a problem