Problem with a DOUBLE DECKER BUS 9 ltr Euro 5 2012
Oil cooler replaced 12 months ago due to failure, customer complained of oil residue still present in header tank. The fault was cured by adding 5 bottles of Forté Bio Degreaser into the cooling system with a cooling system capacity of 60-70 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 3 weeks later that they were happy with the results and the header tank was clean.
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