Shell Naturelle S4 Biodegradable Stern Tube Fluid

Shell Naturelle S4 Stern Tube Fluid 100 is a non-emulsifying synthetic fluid specifically developed for use in stern tubes. Manufactured from fully saturated esters, Shell Naturelle S4 Stern Tube Fluid 100 is designed to offer superior lubrication performance while also being readily biodegradable and having low ecotoxicity. Shell Naturelle S4 Stern Tube Fluid 100 is an environmentally acceptable lubricant according to the definitions of the US EPA 2013 VGP. Designed to offer superior lubrication performance Fully saturated esters ensure excellent resistance to oxidation and hydrolysis while offering high-temperature thermal stability. Excellent hydrolytic stability A non-emulsifying fluid with excellent water separation and anti-foaming characteristics that helps to maintain equipment performance. Environmentally considerate EU Eco Labelled Independently certified as VGP compliant.

Increased wear protection Ashless (zinc-free) additives provide protection over a wide range of conditions. Approvals from leading stern tube and seal manufacturers include* SKF Blohm + Voss Industries Wärtsilä Propulsion Kemel Aegir-Marine.

Prematurely worn components can mean additional maintenance costs and reduced equipment availability. Shell Naturelle S4 Gear Fluid can help to lower maintenance costs by offering outstanding anti-wear and load-carrying performance through their high-quality, synthetic ester base fluid and advanced non-toxic anti-wear additives. CUTTING OPERATING COSTS If water and air contaminate your oil, its ability to reduce friction and keep your gears working efficiently may be compromised. Shell Naturelle S4 Gear Fluids help to cut operating costs by maintaining system efficiency through their excellent waterseparating, load-carrying and anti-wear characteristics. Shell Naturelle S4 Gear Fluid meets industry standard DIN 51517/3 CLP-E, including full water separation in less than 30 minutes according to DIN ISO 6614. LONGER SERVICE LIFE Fully saturated esters ensure excellent resistance to oxidation and hydrolysis while offering high-temperature thermal stability. Shell Naturelle S4 Gear Fluid offers the potential to extend oil service life compared with conventional mineral gear oils. LOAD CARRYING AND WEAR PROTECTION Shell Naturelle S4 Gear Fluid is formulated to have excellent loadcarrying capacity and anti-scuffing performance. Advanced non-toxic additives provide protection over a wide range of conditions and ensure long component life, even under shock-loading conditions. All Shell Naturelle S4 Gear Fluid grades pass the FZG load test above load stage 13 according to ISO 14635 A20.

Environmentally considerate EU Eco Labelled Independently certified as VGP compliant. APPLICATIONS Shell Naturelle S4 Gear Fluid is suitable for gears and bearings in vessel propulsion drives, thrusters and controllable pitch propellers, and is available in ISO viscosity grades 68, 100 and 150. Approvals from leading thruster manufacturers include* Kawasaki Heavy Industries Nakashima Propellor Holland Roerpropellor (ZF). Approvals from leading stern tube and seal manufacturers include* SKF Blohm + Voss Industries Wärtsilä Propulsion IHC Sealing Solutions Aegir-Marine. Approved for use in Sperry Marine for fin stabilisers Caterpillar (Berg) controllable-pitch propellers Ortlinghaus wet marine clutches.