Q: Why should I use Cummins Filtration's FS1000?
A: The FS1000 is recommended for all Cummins CELECT™ engines manufactured after December 1995. These new engines require higher efficiency filtration than standard type filtration.

Q: What is the efficiency of the FS1000?
A: The FS1000 is rated at 10 micron absolute.

Q: What is the difference between a filter with appendix "A" and without (i.e., FF167A and FF167) and which one should I use?
A: Fuel filters with appendix "A" have rolled filter media and are identical to original Bosch filters. To increase filtration performance, Cummins Filtration offers the option of filters with pleated media (part numbers without appendix "A"). Cummins Filtration recommends using filters without appendix "A" because the dust capacity is much higher, so the life of the filter element is longer (for a filter with identical dimensions).

Q: Cummins Filtration offers two types of fuel filters, what is the difference?
A: Cummins Filtration manufactures fuel filters and fuel/water separators. FF**** filters are standard fuel filters, mostly containing High Performance filter media. FS**** filters are specially designed to remove water (free and emulsified) from fuel. Most fuel/water separators are upgrades of fuel filters

Q: What is the advantage of using FS filters instead of FF filters?
A: When a poor fuel quality is bunkered and normal fuel filters are used, excessive wear on plungers/injection pump elements and nozzles will occur, which results in bad combustion and high repair costs. With their high efficiency water removal, Cummins Filtration FS filters save maintenance dollars and equipment downtime.

Q: What is the efficiency of the FS1212?
A: The FS1212 is rated at 25 micron absolute.

Q: Should a fuel filter be changed at every service interval?
A: Cummins Filtration recommends that fuel filters be changed by fuel restriction gauge. This gauge, which works like an air restriction gauge, indicates when it is time to change the filter.

Q: Does Cummins Filtration offer an adapter to convert FF167 or FF167A to the spin-on FS1235?
A: Yes. The Cummins Filtration part number is 3901457S.

Q: What is the fuel line size needed to fit the Fuel Filter Restriction Gauge "T" fitting part number 3927777S?
A: This fitting is for #10 hose.

Q: Cummins Filtration's spin-on fuel filters mention High Performance Media on the outside can. What is this?
A: In fuel filtration, different filter medias can be used such as cellulose, synthetic or a combination of both medias. High performance media is a combination of synthetic and cellulose. Cellulose is an inexpensive media, and by mixing it with synthetic fibers, we can gain some of the advantages of synthetic media (as higher dust-holding capacity per m? and less restriction).

Q: In wintertime, I always have short life of my fuel filters. What's the problem and how can I avoid it?
A: Short life of fuel filters in winter is caused by plugging of the filter due to fuel waxing. Fuel waxing occurs when paraffin in fuel starts to "crystallize". To avoid this problem, Cummins Filtration recommends the installation of an electrical heating element, called PTC (Positive Temperature Controller). PTCs can be connected on 12V and 24 V DC systems. PTC elements are self-regulating and self-protecting heaters--they do not require an additional thermostat in the fuel system to control the heating function. Cummins Filtration has PTC adapter kits in its product range to fit the heater between the existing filter head and spin-on filter. When fuel filters are mounted in suction line, this is a good solution to the problem. Most European engine manufacturers have Bosch/CAV type injection systems, where fuel filters are installed in pressure line. With these systems, Cummins Filtration recommends installing a combination of PTC-kit with FS-filter in suction line. Depending on the required fuel flow, Cummins Filtration can offer you a complete kit: filter head, PTC and FS-filters, and the required relays for 12V or 24V system.

Q: Does Cummins Filtration® offer a remote mount fuel filtration system?
A: Yes, Cummins Filtration®’s OptiGuard™ remote mount Fuel/Water Separator with its FS19557 cartridge element is easy to service. With its clear plastic bowl, the OptiGuard™ system offers at-a-glance inspection and ensures optimum performance.

Q: What filter options are available for use in the OptiGuard™ Fuel/Water Separators?
A: FS1020: High efficiency 2 micron replacement element. FS19557: Standard replacement element for maximum engine protection. FS19559: Replacement element for heavy-duty protection with optimum life.

Q: In the remote mount systems, if fuel is visible at the top of the filter or bowl, does this mean it’s time to change the filter?
A: No, the only way to know for sure when it’s time to change the filter is with a fuel restriction gauge.

Q: Can Cummins Filtration®’s Fuel Filters or Fuel/Water Separators be used in gasoline applications?
A: Cummins Filtration®’s Fuel Filters and Fuel Water Separators are designed, for the most part, for heavy-duty diesel applications and have not been tested for use in gasoline engines. Unless the filter specifically states it is for gas applications, they should not be used.