NO, SAE 30 is recommended
If we are talking about a 2 stroke engine, a TCW-3 rated, 2 cycle oil is required. For a 4 stroke outboard, 10-40 wt. oil is usually recommended.
For engine oil(tranny), i used 10/40 oil. For the tank, i just dumped in some 2 stroke racing oil
Generally it is a 10/30 or 10/40 oil.
4 stroke engine. Use 5W-30 synthetic engine oil at any temperature range Use 30W or 10W-30 above 40 degrees
You must use a special marine oil of 10-40 W or 5-40 W. Normal car and land engine oil does not displace water. Marine oils can be purchased from many large engine oil producers, and there are also companies that specialize in marine oils.
10/40
tcw-3 two stroke engine oil mixed 40:1
I wouldn't. Will damage engine life
what is the application? if it is an ATV 10-30 or 10-40 will work but use ATV motor oil because it has different additives than automobile oil. If your application does not have an oil filter use anon detergent oil.
10-40 semi synthetic or 15-40 mineral oil
The fuel mixture for a Yamaha 40 hp 2 stroke outboard engine is 50:1, gas, oil mixture. You should use new gas when you get the engine ready for the season.
10/40