Prevent Diesel From Gelling in Cold Weather
Gelling prevention. Cold weather stable.
DAVCO has the industry’s leading solution for diesel fuel gelling prevention and water and contaminant removal. DAVCO offers 12 and 24VDC pre-heaters and 120VAC overnight heaters on all Diesel Pro® and Fuel Pro® models. Coolant heat is an additional option available on Fuel Pro® 382 and Fuel Pro® 483 models.
If you have been struggling with fuel gelling during vehicle operation, DAVCO recommends that you order one, or a combination of the noted pre-heaters for cold start improvement along with the engine coolant heat feature. Most truck OEMs currently offer engine return fuel as the fluid heat source for the DAVCO Fuel Pro® 382 and Fuel Pro® 483. Consult with your local dealer or OEM and ask for their coolant heat option recommendation.
Return fuel heat is available for Fuel Pro® 388 and the Fuel Pro® 499 models on Navistar trucks
How does return fuel heat work? Unfiltered, cold fuel flows from the fuel tank into the body of the Fuel Pro®. Heated fuel is routed into the fuel manifold. Returned warm fuel from the engine flows into the housing when the thermostat senses a fuel temperature below 95⁰F. All returned warm fuel from the engine flows back to the tank when the thermostat senses a fuel temperature above 115⁰F. Warmed fuel blends with cold fuel and is sent through the filter. To determine the correct number for your application refer to the OEM Order Codes or call Customer Service at 800-328-2611 or 734-429-5665.
Coolant heat is available for the Fuel Pro® 382, Fuel Pro® 387, and the Fuel Pro® 483
How does coolant heat work? Unfiltered, cold fuel flows from the fuel tank into the body of the Fuel Pro®. Coolant heat is routed through the coolant manifold. The body of the Fuel Pro® is warmed by the coolant and the heat is transferred into the fuel. The warmed fuel passes through the filter. The warmed, filtered fuel is sent to the engine. The coolant and the fuel paths are separate and there is no contact.
The Fuel Pro® 382 and Fuel Pro® 387 coolant heat models have an extended bottom plate for the radiator, thermovalve, and fluid connections. To determine the correct number for your application refer to the OEM Order Codes or call Customer Service at 800-328-2611 or 734-429-5665.
Choose the Right Application
Electric Pre-heaters
There are various configurations of electric pre-heaters and thermoswitches available for the Fuel Pro® and Diesel Pro®.
These include 12VDC pre-heaters, 24VDC pre-heaters, 120VAC pre-heaters/thermoswitches, and combination pre-heater thermoswitches. The voltage and wattage ratings are stamped either on the sheath or the hex of each component for identification. Find the correct heater for your fuel processor here (link to spare parts page)
120 VAC Overnight Heaters
Install a 120VAC plug-in pre-heater to prevent fuel gelling due to overnight cold weather. The 120VAC watt pre-heater warms fuel when your truck is sitting and potentially freezing on cold winter nights. Warm fuel won’t ‘gel’ and plug filters.
The DAVCO 120VAC pre-heater plugs into the same power outlet used for engine block heaters. If your truck already has block heaters or engine heaters which connect to 120VAC plugs, you may be able to wire the DAVCO pre-heater into that same wiring harness using “Y” cord, P/N 102015.
Cold Weather Solutions Literature
DIAGNOSTICS WITH THE “SEEING IS BELIEVING®” CLEAR COVER
DAVCO’s patented clear cover allows you to easily see inside your fuel water separator and makes diagnostics a breeze. Learn more here.
Download Product LiteratureWIF SENSOR TESTING
Need to complete a WIF sensor test? Click here to learn how.
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