PLUS 530 PLUS 530 IS A 100% HYDROCARBON ADDITIVE-FREE OIL DESIGNED FOR USE IN LARGE ROTARY VANE PISTON AND LOBE TYPE VACUUM PUMPS. THE HIGH VISCOSITY AND LOW POUR POINT OF THIS OIL ENSURES EASE OF HANDLING IN EXTREME TEMPERATURES. EQUIVALENT TO AN SAE 30 WT. OIL. Suitable for Stokes Kinney and tuthill series Pumps.