Street Performance 4 Cycle Oil developed for high HP and high RPM Street and Performance bikes OWS Syntho Ultimate Xtreme SAE 10W-60 fully synthetic Race-Performance 4T engine oil. Tested and proven under all street and racing conditions to produce more horsepower and less wear. Increases engine performance, eases cold starts, prolongs oil life and decreases sludge while neutralising corrosives formed in the oil. High detergency content ensures engine cleanliness and prevents varnish and carbon deposits. Provides smooth gear engagement.