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GENERAL 22 FUEL Vehicles with catalytic converter : Unleaded regular grade petrol confirming to IS 2796/DIN 51607 (or equivalent) and octane rating not less than 91 RON for BS-III & BS-IV is recommended as fuel (RON stand for Research Octane Number). CAUTION Do not use leaded petrol in the car fitted with catalytic converter. Even single fill of leaded petrol will seriously damage the catalytic converter. LUBRICANTS: Engine Oil : Recommended grade of engine oil confirming to Multigrade SAE 15W40 API-SJ specification and range of ambient temperature at which these can be used are given in the table below. Ambient temp. in deg. C Engine Oil grade -10 & above Multigrade SAE 15W40 API - SJ Transaxle : Use recommended brand of EP 80 grade oil. Grease for steering rack : EP 2 Servo Gem. Brake Fluid : IS 8654(2001)/DOT 4. COOLANTS Presence of dirt in coolant chokes up passages in radiator, cylinder head and crankcase, thereby causing overheating of engine. To prevent rust formation and freezing of coolant inside the passages of radiator, crankcase and cylinder head use premixed coolant as recommended. It is recommended that the entire cooling system should be drained and filled with fresh premixed coolant. Engine coolant antifreeze coolant as per JIS K2234, Class 2. Windscreen Washer Antifrost Make - Antifrost- K Concentration - 1 : 5 For 00C 1 : 1 For 100C 2 : 5 For 160C 1 : 0 For 370C NOTE We strongly recommend to refill engine coolants only at a TATA authorized