Dirty Diesel Fuel

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The article you referenced is excellent. Correspondingly there are some excellent real world fuel tests going on at the TDIclub, Ford PSD and Duramax sites. Both the TDI and Duramax have roughly 50% efficient OEM fuel filters and permit damaging, life shortening particulates a free pass through the diesel pumps and injectors. It is an emerging problem in that diesel fuel quality regs were written for Big Cam IV engines with 3,000 psi injectors. Current diesels have injector and system pressures in excess of 30.000 psi, necessetating a re-think of on board fuel filtration and fuel filters in general.
George
 
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