Friction modifiers are added to engine oil to reduce the engine’s temperature, extend its life, and increase the overall horsepower. Bel-Ray’s Modified Thumper Racing 4T Engine Oil contains these modifiers and is created to meet the specific needs of motorcycle applications that utilize separate engines and transmissions.
*Meets API SM and JASO MB requirements.
*For air-cooled/liquid-cooled 4-stroke engines.
*Not for use in wet clutch applications.
*Reduced friction equals more energy diverted to the rear tire.
*Excellent deposit control keeps key components free of sludge, varnish or carbon build-up.
*Superior lubrication through viscosity stability.
*Available in 1 liter bottles in 10W30 or 10W40 oil weight.