Rislone Hydraulic Seal - Stop Leak & Conditioner Rislone Hydraulic Seal is specially designed to repair hydraulic fluid leaks, reduce friction/wear and renew seals and O-rings in hydraulic systems. This product is engineered to be professional-grade and is safe to use for consumer applications as well as commercial use cases. Rislone Hydraulic Seal works with all petroleum and synthetic fluids, pump seals, control valve seals, actuators, rams, cylinders, O-ring boss fittings and hydrostatic transmissions. With todays vehicles built to run hundreds of thousands of kilometres it is only natural that supplementing your vehicle with a quality additive can ensure trouble free motoring and lessen more costly repairs down the track. In the mad scramble of modern life the need to detox and look after yourself is always important and this is very much the same for your cars engine. Repco stock a large range of engine treatments, oil flushes and engine conditioners that can keep your new car in tip top condition or help protect your high mileage older vehicle with our range of oil stabilisers or stop smoke products. The abundance of switches and sensors throughout an engine provide vital feedback to monitor its condition but any of these can contribute to poor running or excess fuel consumption if permitted to get clogged or dirty.