No one in my area has 4-stroke marine oil. Everyone has 2-stroke. This is for a 4-horse, 4-stroke Yamaha. If I can't find 4-stroke, marine rated oil, can I use the 2-stroke or - what is a safe alternative? Or should I just mail order?
No. You cant use 2 stroke in a 4 stroke.
2 stroke oil is made to mix in the gas, 4 stroke is made to go in the crank case.
Use the weight oil your manual says and then go buy the same brand as you put in your car.
No, you can not use 2 stroke oil. It is made for a completely different use. I suppose in a pinch, you could use a quality auto multi-viscosity oil but I would take the extra effort to hunt down 4 stroke outboard oil.
Don't they sell it here in iboats stores? It's worth checking out.
Sometimes those 4 cycle OBs can use straight weight auto motor oil. Check the owners manual and see if it can take SAE-30 Oil. You should be able to get that anywhere
No one in my area has 4-stroke marine oil.
. This is for a 4-horse, 4-stroke Yamaha. If I can't find 4-stroke, marine rated oil, can I use the 2-stroke or - what is a safe alternative? Or should I just mail order?
WalMart has 4-stroke marine oil. Every "Farm Store" I go to has 4-stroke marine oil and nearly every boat dealer, sporting goods store and convenience store sells the stuff incuding my local grocery store. I'm certainly not trying to beat iBoats out of oil sale but finding 4-stroke marine oil is not an issue unless you live 100 miles from civilization.
