Millers Oils Vintage Millerol 50 – SAE 50 Monograde Non-Detergent Motor Oil
Millers Oils Vintage Millerol 50 – SAE 50 Monograde Non-Detergent Motor Oil
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APPLICATION – VINTAGE MONOGRADE OIL MILLEROL 50
Use Vintage Millerol 50 in historic vehicles where a non-detergent oil is explicitly specified.
In addition, this oil can be used in gearboxes that require a mild GL-1 oil .
The SAE 50 viscosity makes this oil ideal for engines and transmissions from before 1930, motorcycles with older engine technology and drivetrains with larger tolerances.
When a classic vehicle is later fitted with a modern oil filter system, Millers recommends switching to Pistoneeze 50 .
Description
Vintage Millerol 50 is a high-quality SAE 50 monograde motor oil without detergent properties, developed for classic, veteran, and vintage motorcycles. The oil is based on a carefully refined neutral base oil and enriched with additives that provide reliable protection against oxidation and wear. Thanks to its thicker viscosity, this oil is also ideal for certain classic motorcycles, including older Harley-Davidson models, and for specific two-stroke applications (where the engine design requires it).
Advantages
High SAE 50 viscosity for older engines that benefit from a thicker oil film.
Suitable for engines with unknown internal condition or potential sludge formation.
Non-detergent formulation prevents the loosening of deposits in vulnerable or sludge-prone engines.
Can also be used in classic gearboxes and motorcycles where a mild oil is required.
Performance level
API: SB
Product features
SAE Viscosity: 50
Density @ 15 °C: 0.891
Kinematic viscosity @ 100 °C (cSt): 19.1
Kinematic viscosity @ 40 °C (cSt): 225.3
Viscosity index: 96
Pour point (°C): -6
Flash point (°C): >200









