Quote:
Originally Posted by 2martins
Stupid question- is the water separator *in addition* to the fuel filter I already changed in my engine compartment?
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Yes I think so, although mine were next to each other in the engine compartment. If your bus only has one for some reason I think it would be well worth it to add a water separator. The low sulfur diesel at the pump now is more susceptible to biological contamination, and water has always been an issue with diesels.
You can tell the difference between the filters because the separator has a petcock on the bottom.