Delete Diesel Discriminator From Wrangler Ecodiesel Fuel Filler Tube

Updated: 2 days ago

I was frustrated not being able to fuel my Jeep at truck stops. Jeep chose to install a discriminator in the fuel filler tube on Ecodiesel Jeeps. The discriminator allows the smaller diesel nozzle but not a larger gas nozzle to fit into the fuel filler tube. This prevents the accidental introduction of gasoline into the Ecodiesel fuel tank. Unfortunately it won't allow filling with the High Flow 1" Diesel Nozzle found at truck stops. I have a simple fix for it.

#Wranglerecodiesel #deletfuelneckrestrictor #dieseldiscriminator #diesel #jeepmods #ecodiesel

Man holding diesel fuel nozzle at truck stop standing next to fuel pump. Fueling up the Jeep Wrangler Ecodiesel. — Truck Stops Are A Option When The Discriminator Is Deleted

Refueling the Wrangler Ecodiesel with the 1" Nozzle at a Truck Stop

Why did I go to the trouble to delete the diesel discriminator from my Wrangler Ecodiesel? When I'm driving my Ecodiesel, I love pulling up alongside the larger trucks to refuel. Truck stops also offer DEF pumps, making it convenient to fill up both tanks. Getting diesel exhaust fluid from a pump is not only cheaper but also fresher compared to getting it from a box.

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Steps Involved To Delete Diesel Discriminator On A Wrangler Ecodiesel

Remove Wrangler Ecodiesel tail light.
Remove Jeep wheel well liner (fender liner.)
Remove 3 screws from fuel door housing attaching Diesel Exhaust Fluid (DEF) filler tube.
Remove Wrangler Fuel Door Housing
Remove top section of fuel filler tube.
Remove discriminator (fuel neck restrictor) from filler tube.
Re-assemble by reversing process.

Jeep Wrangler and Exventure XV-3 off-road trailer at a truck stop. Cat Certified Scales sign is in the background. — Wrangler Willys Is A Great Overlanding Vehicle.

Torque And Fuel Mileage: The Advantage Of Having A Diesel Motor In The Jeep

With the Wrangler Ecodiesel, I benefit greatly from its towing capabilities, and removing the diesel fuel filler discriminator adds convenience. It also offers ample power for towing my Exventure XV-3 Off-Road Trailer.

Rear driver side quarter panel of Jeep Wrangler Ecodiesel showing the fuel filler door and the tail light. The tailgate is open. — Ecodiesels Are Equipped With The Aluminum Fuel Filler Door Stock From The Factory

Eliminating the Discriminator Is Simple and Only Calls for a Few Basic Hand Tools

It might be a good idea for me, but perhaps not for you. I am the sole person responsible for refueling this vehicle. Without the safety feature, there is a risk of accidentally filling it with gasoline. If there are several drivers who refuel your vehicle, it may be advisable to keep the discriminator in place.

Jeep Wrangler Willys Ecodiesel green fuel filler cap inside the fuel filler door. — Diesel Caps Are Usually Always Green - Helps Prevent Accidental Filling With Gasoline

Jeep Has Discontinued Producing Vehicles Equipped With Diesel Engines

It was thrilling for me when Jeep began incorporating Diesel engines in their vehicles. I purchased both a Wrangler and a Gladiator. It's disappointing to learn that it will no longer be available.

Diesel Exhaust Fluid filler neck is visible through opening in body of Jeep Wrangler when tail light is removed. — DEF Filler Tube Is Visible When Rear Tail Light Is Removed

The most challenging aspect of this task involves taking out the three screws that secure the DEF filler neck to the fuel filler door.

Challenging yet achievable. The DEF filler neck must be disconnected in order to take out the fuel filler door.

Blue cap of diesel exhaust filler tube that has been disconnected from a Jeep Wrangler Ecodiesel Fuel filler door. — 3 Difficult To Reach Screws Hold The DEF Filler Tube In

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Fuel filler door of Jeep Wrangler Ecodiesel is open and green cap is hanging down. Tail light has been removed and man is using screwdriver to release tabs to remove fuel filler door. — Clips Have To Be Released From The Fuel Filler Door To Remove It

Fuel filler housing from a Jeep Wrangler Ecodiesel. Door is open showing 2 holes that are for diesel and DEF filler tubes. — Fuel Filler Door Is Removed

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Back side of fuel filler door housing for the Jeep Wrangler Ecodiesel showing openings for diesel filler tube, DEF filler tube. — Back Side Of Fuel Filler Housing

Rubber ring that holds diesel filler tube in place in Jeep Wrangler Ecodiesel Fuel Filler tube. — Rubber Ring Serves As Isolator And Seal On diesel Filler Tube

Fuel filler door removed from Jeep Wrangler Ecodiesel exposing fuel filler neck.ler neck. — Fuel Door Removed Access To Fuel Filler Neck Is Possible Now

Jeep Wrangler Ecodiesel with fender skirt removed allowing access to hose clamp and bracket that connects fuel filler tube to rubber portion that goes to fuel tank. — Taking Off The Fuel Filler Neck And Working On A Bench Is Easier

Section of fuel filler neck sitting on a Jeep's mud terrain tire. — Short Section Of Fuel Filler Neck That Contains The Discriminator

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End of fuel filler tube with discriminator and and flapper visible. — Discriminator With Flapper That Will Be Removed

Jeep Wrangler Ecodiesel fuel filler tube with tabs that hold discriminator assembly in. — These Tabs Hold The Discriminator Assembly In

Jeep Wrangler Ecodiesel fuel filler neck sitting on bench with tools. Man is preparing to remove discriminator. — Working On A Bench Is Way Easier

Jeep Wrangler Ecodiesel fuel filler neck with discriminator removed. This will allow use of large 1" diesel fuel filler nozzle. — Discriminator Removed

Discriminator that has been removed from the fuel neck of a Jeep Wrangler Ecodiesel. It is a 2 peice assembly consisting of collar and discriminator. — Fuel Neck Collar And Discriminator Are A Assembly

Man working on a bench separating a Jeep Wrangler Ecodiesel discriminator from the collar. — Seperating The Collar From The Discriminator

Man is holding a Jeep Wrangler fuel discriminator. — The Discriminator With Its Internal Flapper

Bench with Jeep Wrangler fuel neck, discriminator, and collar sitting on it. Man has just got done using tools to disassemble it. — Fuel Neck - Discriminator - Fuel Filler Neck

Inserting collar in fuel filler neck so it can be re-installed on Jeep Wrangler Ecodiesel. — Color Gets Put Back Into Fuel Filler Neck

Fuel filler neck being reinstalled in in Jeep Wrangler Ecodiesel. Discriminator has been removed to all Jeep to use larger diesel nozzle to fill up with fuel. — Fuel Neck Gets Re-Installed

Jeep Ecodiesel Wrangler fuel door open and green diesel cap removed showing fuel neck without discriminator. Blue DEF Filler Tube Cap is part of the assembly. — Discriminator Removed - Fuel Line Reassembledd

Conclusion:

A video shows a man using a pair of Channel Locks to remove the collar with the fuel neck still attached to the vehicle, mistakenly referring to it as the discriminator. Even with the neck removed, removing the collar proved to be difficult. I consider the video misleading, as my attempts and those of others have been unsuccessful. I believe that my method is the most efficient way to eliminate the discriminator, as supported by comments on my YouTube video. If you are thinking about removing the discriminator from your vehicle, my article and video can provide a trustworthy guide.

Jeep with hood open and Docs Filters and penzoil on sitting on the engine. — Save Money On Ecodiesel Oil Changes

Ecodiesel Oil And All Filters Change Made Simple And Inexpensive

Click here for my Blog Post and video where I show step by step hot to change oil, oil filter, fuel filter, air and cabin filter on a Jeep Ecodiesel.

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