Problem with a 4 SERIES TRACTOR UNIT 2000
Oil cooler failure prior to a complete engine change; engine and oil cooler replaced. Oil residue in cooling system. The fault was cured by adding 3 bottles of Forté Bio Degreaser into the cooling system with a cooling system capacity of 40 litres. The vehicle was then run at fast idle for 20 minutes at operating temperature and taken for a 20 mile road test. The cooling system was drained and refilled with fresh coolant. The customer reported a week later that they were happy, vehicle had never run so well and the oil residue had gone.
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