: ISO 100 oil, like that from Silverhook , is designed with high viscosity base oils and "tacky" modifiers to reduce wear and prevent the oil from flinging off the chain during operation.
: This grade is ideal for homeowners who do not use their saw for extended, continuous periods. For professional or heavy-duty use, a higher viscosity like ISO 150 is often recommended to handle higher operating temperatures. ChainsOlym.iso
: Some "W" (winter) grade oils like SAE 10W flow better in freezing temperatures, while thicker SAE 30 oils provide better lubrication in extreme heat. 2. "In Search Of" (ISO) Highly Rated Chainsaws : ISO 100 oil, like that from Silverhook