Do not wait for the factory-recommended intervals. Change the engine oil and filter every 5,000 to 7,500 miles (8,000 to 12,000 km) using only high-quality, fully synthetic oil that meets factory specifications (such as Total Quartz Ineo).
The high-pressure fuel pump is another critical and common failure point on the EP6DT. This pump is responsible for delivering fuel at extremely high pressures to the direct injection system. ep6dt engine problems
Blue or white smoke from the exhaust, especially under load. Do not wait for the factory-recommended intervals
Replace the entire chain kit (chain, guides, tensioner) with the updated thicker chain. Do not ignore the rattle. 000 to 7
The cooling system on the EP6DT relies heavily on plastic components that fail under constant heat cycles.