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166 Service and maintenance Additional engine oil additives The use of additional engine oil additives could cause damage and invalidate the warranty. Engine oil viscosity grades The SAE viscosity grade gives information of the thickness of the oil. figures, e.g. SAE 5W-30. The first figure, followed by a W, indicates the low temperature viscosity and the second figure the high temperature viscosity. depending on the minimum ambient temperature 3 169. grades are suitable for high ambient temperatures. Coolant and antifreeze Use only silicate-free long life coolant (LLC) antifreeze approved for the vehicle. Consult a workshop. coolant designed for excellent corrosion protection and frost protection down to approx. -36 °C. In northern countries with very low temperatures the factory filled coolant provides frost protection down to approx. -50 °C. This concentration should be maintained all year round. The use of additional coolant additives that intend to give additional corrosion protection or seal against minor leaks can cause function problems. Liability for consequences resulting from the use of additional coolant additives will be rejected. Washer fluid Use only washer fluid approved for the vehicle to prevent damage of wiper blades, paintwork, plastic and rubber parts. Consult a workshop. Brake and clutch fluid Over time, brake fluid absorbs moisture which will reduce braking effectiveness. The brake fluid should therefore be replaced at the specified interval. |