Wärtsilä has been awarded a contract by DSD Shipping AS of Stavanger, Norway to retrofit the main engines on four DSD Shipping vessels with the Wärtsilä Retrofit Pulse Lubricating System. The Retrofit Pulse Lubricating System (RPLS) is designed to lower the oil feed rate to the engine, thus cutting the consumption of lubricating oil. This creates savings in operating costs, and also has a positive effect on exhaust emissions. The DSD Shipping contract is Wärtsilä's first order for the retrofitting of small bore two-stroke engines with this system.