V-Series "ST" Motor Oils are formulated using highly refined petroleum base stocks and Torco's race proven MPZ® additive providing better cooling, cleaning, ring seal, deposit control and anti-wear protection. Maintains viscosity and provides thermal stability under high temperature environments. V-Series is specifically formulated for Harley® and custom v-twin engines.

V-Series "ST" Motor Oils

SAE 20W-50
$10.95 per 1 liter bottle
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$40.65 per 1 Gallon bottle
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SAE 50
$10.95 per 1 liter bottle
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SAE 60
$10.95 per 1 liter bottle
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Features & Benefits

- Premium grade petroleum formula
- MPZ® frictional loss technology
- Prevents oil breakdown at high temperatures
- Provides superior ring seal
- Excellent wear protection
- Extends piston and valvetrain life

SAE 20W-50
Recommended for use in late model air cooled or liquid cooled engines commonly found in Harley® (Big Twin - Evolution® & Twin Cam 88® engines) and many other custom v-twin applications.

1 liter bottle

1 Gallon bottle

SAE 50
Recommended for use in early model air cooled v-twin engines where specified. Commonly used in Harley® (pre-1984: Knuckle, Pan, Shovel) and other early model custom v-twin applications.

1 liter bottle

SAE 60
Recommended for use in early model air cooled v-twin engines where specified. Commonly used in Harley® (pre-1984: Knuckle, Pan, Shovel) and other early model custom v-twin applications.

1 liter bottle

JASO MA / API SG