Question: what is the difference between aw 32 and iso 32?
Answer: ► R&O – Stands for Rust & Oxidation; also contains Anti-Foam additives. ... ► AW – Stand for Anti-Wear; also protects against Rust & Oxidation, and contains Anti-Foam additives. AW32 is approximately a 10 weight oil with the additives. AW46 is approximately a 15 weight oil with the additives.