How long do fuel water separators last?
A fuel/water separator typically lasts 25,000 to 50,000 miles on a heavy-duty diesel engine, replaced at the same interval as the primary...
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Truck Filter Tips & Industry News
Maintenance guides, filter comparisons and industry updates for fleet owners and service shops.
What is the difference between a filter and a separator?
A fuel filter removes solid particles (rust, dirt, paint flakes, biomass) from diesel fuel by trapping them in a media element. A fuel/wa...
Read More →How often should I change my fuel filter?
On any modern heavy-duty diesel (Detroit DD15, Cummins ISX/X15, Volvo D13, PACCAR MX-13, Mack MP8), the fuel filter replacement interval ...
Read More →Will a bad filter affect acceleration?
Yes. A clogged or failing fuel filter on any heavy-duty diesel directly affects acceleration because the engine cannot draw enough fuel v...
Read More →Will water in diesel ruin injectors?
Yes. Water in diesel fuel will destroy modern high-pressure common-rail injectors, often quickly. Heavy-duty engines like the Cummins ISX...
Read More →What are the symptoms of a bad diesel fuel filter?
The symptoms of a bad diesel fuel filter on any modern heavy-duty engine typically appear in this order: hard start (especially after sit...
Read More →Can I drive with a clogged fuel filter?
You can drive with a partially clogged fuel filter, but you should not. On any modern heavy-duty diesel, partial clog symptoms appear fir...
Read More →How to unclog a fuel filter without removing it?
You cannot unclog a heavy-duty fuel filter without removing it. The contamination sits inside sealed media that cannot be cleaned externa...
Read More →Can you change a fuel filter without draining the tank?
Yes, on any modern diesel engine with a housed cartridge fuel filter, you can change the filter without draining the fuel tank. The proce...
Read More →Why do diesels have a fuel water separator?
Diesels have a fuel water separator because diesel fuel naturally absorbs and carries water, and water destroys diesel injection systems ...
Read More →How to choose a fuel water separator?
The right fuel/water separator for a heavy-duty diesel matches three criteria: engine fitment (housing thread, mounting pattern, fuel lin...
Read More →Can you clean and reuse filters?
No. A heavy-duty diesel fuel filter or oil filter cannot be cleaned and reused. The trapped contamination sits inside a sealed media elem...
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