In June 2010 Filter Solutions Ltd started a series of engines tests to see if a basic service extension kit utilising a Puradyn filter can be applied to an HGV chiller unit. The engine powering the compressor is a Yanmar 3TNE68 14 bhp diesel. The manufacturers standard service interval is 200 hours with an extended sump capacity. To date (14-06-2010) we have run the engine for 200 hours without any engine modification. During the 200 hours we took 4 oil samples which can be seen here & here. You can see from the graphs that the oil quality has degraded very rapidly mainly due to oxidation. By the time the engine had reached its 200 hour standard service interval the oil was no longer fit for further use.

The engine is again on test with one of our unique oil bypass filters and results should start coming in soon.