Class 1 Ester Base
Class 2 Hydrocarbon Base (PAO)
Class 3 Hydrorack
- Excellent film strength
- Viscosity index above 180
- Strong cleaning characteristics
- High quality but expensive cost
Class 2 Hydrocarbon Base (PAO)
- Strong film strength
- Viscosity Index above 150
- Moderate cleaning properties
- Lower material cost
Class 3 Hydrorack
- Moderate film strength
- Viscosity index above 130
- Modified from mineral oil
- Performs better than mineral oil
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