I've picked up an old Scott Bonner and am unsure of the model or if its a 4 or 2 stroke motor. I think it has 14" cutting width?

Identification assistance and fuel mix requirements would be appreciated.

It looks like a 2 stroke. It has a red tube fuel tank with rounded ends on top. The tank has a sticker on one end that says Castrol XL oil is recommended when new. The spark plug is on top of the engine with an earth / grounding cover attached to the engine and hanging over the plug to kill the engine.

Thanks for any help.