KraftWerks Rotrex SX150 Traction Fluid (1 Liter) - R50-S150-OIL The only oil to be used in your Rotrex supercharger is Rotrex SX150 traction fluid. Order a bottle before your 50,000 mile Rotrex oil change, or to keep as a spare. $121.79 $115.99 Add to Cart