Shipyard123
Cadet
- Joined
- Feb 18, 2010
- Messages
- 7
Hello. I'm new to out-boards and I just bought a no name brand 2.5, 2 stroke water cooled out board and in the manual it calls for 20/26:1 ratio of 10w40!!!! should I use a tc-w3 oil instead?
So you have a User Manual on an outboard that has no brand name or model number? Amazing.
Any water cooled 2 stroke will fare better with TC-W3 outboard oil than 10W40.
A 2.5 water cooled that calls for 20-25:1 is quite likely made by Gale in the 40s-50s, which would call for a 20:1 mix.
That would be 1.6oz oil per gallon of 87 octane regular unleaded.
Jb if it is calling for 25:1 10w40 oil what do you think I should use with the tc-w3 oil?
But go with the outboard oil most likely a translation thingy 10/ 40 = tw-c3