- Original part number: A063E183
- Superseded number: 326-5339
- Product: Onan OnaMax Conventional Generator Oil
- Oil Type: Non-synthetic formula designed to reduce consumption and engine wear
- Engine Protection: Provides maximum protection against high temperatures caused by oil oxidation and viscosity
- Viscosity Grade: SAE 10W-30
- Quantity: Sold in a 1-quart bottle
- Weight: 2 lbs
- Use: Factory-tested for maximum engine protection in Onan generators