Mixing 2 cycle oils

[reeltime170]

1989 Yamaha 130 hp, put 1 gallon penzoil in tank, will it hurt to top the tank off with Quicksilver 2 cycle oil? (oil injected).
Just not sure about mixing 2 different oils

 

[Bamaman1]

Re: Mixing 2 cycle oils

They say it's not good to do mix oils. But if you're changing from dino to dino oil brands, don't worry about it.

The only way to not mix oils would be to remove the external oil tank and the small oil tank on the engine and drain them both. That would be unreasonable effort.

It's a tough engine. You'll be okay.

 

[ondarvr]

Re: Mixing 2 cycle oils

There is no problem mixing these oils, part of the TCW cert is they must mix with other oils.