2004 Mercedes SL-Class Owner's Manual - Page 388

Technical data Fuels, coolants, lubricants, etc. Model Cooling system Capacity Fuels, coolants, lubricants, etc. SL 500 approx. 12.3 US qt (11.6 l) MB 325.0 Anticorrosion/Antifreeze SL 600 approx. 13.6 US qt (12.9 l) SL 55 AMG approx. 14.5 US qt (13.7 l) SL 600 approx. 2.2 US qt (2.1 l) 21.1 US gal (80.0 l) 2.6 US gal (10.0 l) MB 325.0 Anticorrosion/Antifreeze Premium unleaded gasoline: Minimum Posted Octane 91 (Avg. of 96 RON/86 MON) R-134a refrigerant and special PAG lubricant oil (never R-12) 0.42 US qt (0.4 l) 7.4 US qt (7 l) MB Hydraulic Fluid MB Windshield Washer Concentrate1 Low temperature cooling system Fuel tank including a reserve of Air conditioning system Hydraulic system for retractable hardtop Windshield washer and headlamp cleaning system 1 Use MB Windshield Washer Concentrate "S" and water for temperatures above freezing or MB Windshield Washer Concentrate "S" and commercially available premixed windshield washer solvent/antifreeze for temperatures below freezing. Follow suggested mixing ratios ( page 392). 387