Pretty much all I've used for 20+ years. I've watched 2 cycle oils blended and labeled. What amazed me was the different labels that came from the same tank. Everything from big box stores to OEM manufacturers was being bottled on conveyors that were fed from the same blending tank. Two cycle oils come from a blending company that purchases a base oil and blends to customer specs. While I was in the blending plant I chatted with the shift supervisor who told me that 95% of all standard TCW III oils were exactly the same.