n case of corrosion the first action to take is to increase the lube oil feed rate (LOFR) to deliver more basicity reserve during the piston motion in the cylinder. If this action is not sufficient it is necessary to switch to a Cylinder Oil with a higher BN. Nowadays, in the most modern engines and in line with the current OEM (Original Equipment Manufacturer) recommendations, corrosion can be avoided with Cylinder Oils of BN 100 mg KOH/g available on the market.Cold corrosion is not only serious in the latest engine designs but also it has impacts on earlier engine designs modified for part-load or low-load operation. The design modifications included:
Variable turbo charger nozzle rings fitted
Engine tuning changes
Turbocharger cut-out
Exhaust gas bypass valve fitted