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Technical Paper

A Study on Effects of Low Viscosity Engine Oil and MoDTC on Piston Friction Losses in a DI Diesel Engine

2015-09-01
2015-01-2044
The reduction of friction losses is a subject of central importance in a diesel engine. The piston frictions of low viscosity engine oil and molybdenum dialkyl dithiocarbamate (MoDTC) have been measured by floating liner method. It was found that the low viscosity engine oil lower than 5W-30 is not effective against the reduction of friction mean effective pressure (FMEP) related to the fuel consumption. MoDTC showed a good performance against the reduction of FMEP. In the friction measurement points, the reduction ratio of 10W-30 with MoDTC to 10W-30 was greater than that of 5W-30 to 10W-30.
Technical Paper

The Effect of MoDTC for Improving the Fuel Economy of Diesel Engine Systems

2015-09-01
2015-01-2032
This study examines friction reducing and fuel economy improving performance of MoDTC with heavy duty diesel engine oil (HDDO) using several friction tests and fleet trucks. As a result, a fuel economy improvement of approximately 2 % was observed without any negative influence on the engines, and the friction reducing performance of MoDTC remained for more than 50,000km.
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