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Product Description:Bel-Ray Works Thumper Racing Full Synthetic Ester 4T Engine Oil was developed for full works competition use and is designed to withstand extreme racing conditions. Full synthetic ester base oils withstand the highest temperatures and stresses which provide the ultimate 4-stroke Thumper engine oil. Bel-Ray Works Thumper Racing Full Synthetic Ester 4T Engine Oil exceeds API SM and JASO MA2 requirements. The oil is suitable for air-cooled or liquid-cooled 4-stroke engines and wet clutches.Applications:- Thumper engines (single cylinder, multi-valve racing engines)- For use in all 4-stroke engines requiring an oil meeting the API SG/SH/SJ/SL/SM standards- For use in all 4-stroke motorcycles with or without wet clutches including those specifying the use of a JASO MA/MA1/MA2 qualified oil- Use in all 4-stroke motorcycle engines with or without wet clutchesFeatures:- Superior anti-wear - Reduced cylinder and ring wear. Longer bearing life.- Superior deposit control - Cleans deposits. Controls sludge and varnish formation. Keeps ring lands and grooves free of carbon build-up.- High viscosity stability - The shear stability provides superior lubrication and film strength. Minimizes friction for maximum power.- Smooth power transfer - Prevents clutch grabbing for an easily controlled and efficient gear shifting and clutch operation.Specifications:SAE Grade API Service Category ASO Performance Classification 99550 10W-50 SM MA2
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