FASS: Mass Flow Return (MFR)

fass mass flow return mfr

Mass Flow Return (MFR) technology is used to continually “polish” your fuel by keeping a positive pressure on the fuel being delivered to the engine and returning the fuel, that’s not yet needed, back to the tank after it has been passed through the filtration process, removing dirt, air, vapor and water. This means your fuel is being constantly moved and cleaned, guarantying that your diesel truck always has the freshest and cleanest fuel possible.

The FASS Titanium Series diesel fuel pump continually “POLISHES” your diesel fuel by circulating it through the filtration process over and over. This method that we call our exclusive MFR feature, removes all types of fuel contaminants (Dirt, Air, Vapor & Water) during each pass through the FASS system, delivering the cleanest diesel fuel possible in the diesel industry!

Don’t be fooled by others out there claiming to offer the same feature. Only FASS offers a high flowing return system that continually returns unneeded diesel back to your fuel tank once optimal fuel pressure has been reached. This guarantees that the fuel reaching your engine is freshly cleaned and offers the coolest possible temperatures. Thanks to our pumps high volume flow, your diesel pump with filter the fuel in your entire fuel tank over a short period of time.

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