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How To Save Money Changing Oil & Filters On Jeep 3.0 Liter Ecodiesel

Updated: Aug 5

Upon purchasing a new vehicle from Jeep, you receive three complimentary oil changes. This service includes an oil and filter change along with a tire rotation. After our Gladiator utilized these services, it was my turn to handle the maintenance. I decided that Doc's Diesel Filters was the ideal choice for meeting the Jeep's maintenance requirements. Doc's Diesel 3rd Party Testing of Filters.


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4 Doc's Filters in boxes sitting inside the engine bay of the Gladiator Ecodiesel that they will be getting installed in.
The Four Filters I Got From Doc's Diesel

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Check Out My Youtube Video On This Subject Here



Oil, Fuel, Engine Air & Cabin Air Filters


In both my video and this blog post, I will demonstrate the simplicity and affordability of conducting this routine maintenance to prolong the lifespan of your Ecodiesel vehicle.

Doc's Diesel Ecodiesel Filter Kit consisting of a oil filter, engine air, fuel filter, and cabin air filter.
All The Filters Your Vehicle Needs To Keep Systems Working Way They Should

Doc's Diesel Are OEM Quality: You Can Be Confident In Using Them For Your Ecodiesel Oil & Filters Change


For the price of one Oil Filter from the Jeep Dealer, I purchased four Doc's Filters. It's crucial to remember that the engine air, fuel, and cabin air are frequently overlooked. Doc's offers a convenient and cost-effective solution to address all these filters simultaneously.



Jeep Gladiator with hood open and 3.0 Liter Ecodiesel engine in view. 9 quarts of Pennzoil are sitting in the engine compartment.
Oil Is The Lifes Blood Of The Engine And It Is Critical To Use The Correct Spec

Jeep Ecodiesels Require Specific Oil for Optimal Performance: Quantity 9 Quarts


Having utilized both the Amsoil and the Pennzoil shown in the image above, what similarities do they share and what enables them to be employed in the Ecodiesel engine? Both oils are 5w-40 Full Synthetic and meet Chrysler's MS-12991 API SN Specifications. It is crucial to use oil that meets this specification when changing the oil and filters in your Ecodiesel.




Box containing Doc's Oil Filter with a background of diesel fuel pumps and text saying "Changing Oil Filter And Engine Oil."
Doc's Filters Are OEM Quality At A Economic Price

Here Is How I Change The Oil Filter And Engine Oil


Man laying under vehicle using ratchet wrench to remove a oil pan drain plug. There is a large green plastic pan positioned to catch the oil when it comes out.
Removing The Oil Drain Plug

Man laying under Jeep watching oil drain from the Jeeps oil pan and into a large green plastic pan.
The Jeep Holds 9 Quarts Of Oil - It Comes Out Fast So Make Sure You Have A Large Deep Pan To Catch It


Looking inside the Jeeps engine compartment at the 3.0 Liter Ecodiesel motor. The oil filter location is pointed out with a circle and a arrow.
Oil Filter Is Located Here On Driver's Side Of Gladiator And Wrangler JL Ecodiesels


The Jeep Ecodiesel engine compartment showing a rag located under the oil filter. When filter is removed rag wil collect oil that is spilled out.
I Place A Rag To Contain Drips And Spills When I Remove The Oil Filter


Inside the engine bay of the Ecodiesel motor using a ratchet wrench to remove the oil filter. There is a Doc's Engine Air Filter sittin on the top of engine.
27 mm Socket And Extension Make It Easy To Remove The Oil Filter


Looking inside the Ecodiesel engine bay while man holds up old oil filter he just removed.
Old Oil Filter Gets Thrown Away

Ecodiesel Oil Filter Mount with oil filter removed and residual oil pooled in it.
Residual Oil Left In The Oil Filter Mount That Will Be Soaked Up With A Rag


A Ecodiesel Oil filter looking at the 2 O Rings that are needed to seal the oil filter.
The New Oil Filter - Make Sure O Rings Are Present
 

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Putting fresh clean oil on the O Rings of the new oil filter prior to installation of the new oil filter in the 3.0 liter Jeep Ecodiesel engine.
Oiling The O Rings On The New Oil Filter

Installing the new oil filter in the engine of the 3.0 liter Jeep Ecodiesel Motor using a socket with a extension and a Torque Wrench. Filter requires 25 newton meters and ther is a Doc's Diesel Air Filter sitting on top of the motor also.
Oil Filter Is Installed And Torqued To 25 Newton Meters


A oil drain plug held in a man's hand. This plug gets installed in the oil pan of the Jeep.
Oil Drain Plug Gets Torqued To 33 Foot Pounds

Oil Change Complete!



Box with Doc's Fuel filter inside sitting on a background of green diesel fuel pumps.
Don't Listen To The Manual-Change Your Fuel Filter At Every Oil Change

The Dealer Can Charge As Much As $400.00 To Change Your Fuel Filter


The fuel filter for the Jeeps Ecodiesel is designed as a Fuel Water Separator Filter. The housing containing it features a petcock. If the "Water In Fuel Light" indicator illuminates, you will need to open the petcock to drain the water. It is advisable to replace the filter more often than what the manual suggests. By using Doc's Diesel Filters, it is cost-effective to do this with every oil change.



Driver side of Gladiator with running board and a drain pan sitting on the driveway.
Fuel Filter Is Located On Drivers Side Of Gladiator Just Behind The Door And Underneath On The Frame

Under the Jeep Gladiator looking at the skid plate that protects the fuel filter. A drill motor is being used to remove the screws that hold it on.
Fuel Filter Protected By This Skid Plate


Fuel Filter housing on the Jeep Gladiator. It has a petcock that is for draining water that may get in fuel.
Fuel Filter Is Under The Fuel Filter Housing - The Housing Contains A Petcock For Draining Water in Fuel

The Petcock Allows For Draining Water If Your "Water In Fuel Warning Light" comes on.


A bottle held under the petcock of the fuel filter housing collecting fuel prior to changing the filter.
Draining Fuel Prior To Removing The Fuel Filter Housing

Draining the fuel will cut down on the mess when removing the housing.

A socket and wrench are being used to remove the fuel filter housing. It unthreads and is removed to access the fuel filter.
A Socket Is Used To Unscrew The Fuel Filter Housing To Remove And Change The Filter

Fuel filter has been removed and is draining on a drain pan and the new filter is being shown.
Housing And Old Filter And New Filter - Note How The Filter Is Installed


The inner mechanism of the Jeep Gladiator Ecodiesels Fuel Water Separator Filter.
Fuel Is Filtered And Water Seperated Here


A new fuel filter being inserted into the fuel water separator on a Jeep Gladiator Ecodiesel.
New Filter Snaps Into Place Easily


New fuel filter is colored green and is full inserted and locked int to the fuel water separator mechanism.
New Fuel Filter In Place


Fuel filter housing and used fuel filter sitting on a tool cart. The old filter has been removed.
Old Fuel Filter Removed From The Housing


Fuel filter housing with new O ring installed. Oil is being applied to the O ring to protect it during installation.
Doc's Diesel Provides New O Ring That Has To Be Installed In The Housing


Using a ratchet wrench to install the fuel filter housing on the Jeep Gladiator Ecodiesel.
Housing With New O Ring Being Installed

Housing is re-installed and turned till it is tight and the petcock is lined up properly.


Air Filters For The Ecodiesel Were Once Hard To Find. Not Any More With Doc's Diesel Filters

Doc's Diesel Air Filter in a box.
Doc's Diesel Air Filter - OEM Quality At A Reasonable Price

Under the hood of the Jeep Gladiator Ecodiesel looking at the housing that surrounds the engine air filter.
Air Filter Is Located Under Here


Engine air filter housing removed exposing the old air filter allowing it to be removed.
Remove 4 10 mm Screws To Remove The Old Filter

Engine air filter housing is opened up and a new air filter is being installed in the Gladiator Ecodiesel.
Simple But Very Important Maintenance

Tightening 4 10 mm screws that hold the engine air filter in.
Take It Easy With The Impact Drill Not To Strip The Screws

Cabin Air Filter Is Often Neglected But A Very Easy Maintenance Item

Doc's Cabin Air Filter for the Jeep Gladiator Ecodiesel.
A Clean Cabin Air Filter Make The AC More Efficient

Glove Compartment on a Jeep Gladiator Ecodiesel being removed to allow for access to remove old cabin air filter and install a new one.
Cabin Air Filter Is Behind The Glove Compartment


The small door that encloses the cabin air filter and holds it in on a jeep gladiator ecodiesel.
Remove This Small Door

Removing the old dirty cabin air filter on a jeep gladiator Ecodiesel.
Neglected And Very Dirty Cabin Air Filter

Sliding the 2nd of 2 part cabin air filter into the filter rack in the jeep gladiator ecodieseel.
New Cabin Air Filter Is 2 peice making it easier to install


Small Door that holds the cabin air filter in is replaced after installing new filters on the Jeep gladiator ecodiesel.
Replace The Small Door
Once the Cabin Air Filters Are Replaced The Glove Compartment Goes Back In

Despite being frequently overlooked, this filter becomes heavily soiled due to the continuous influx of outside air into the vehicle, resulting in an inefficient AC system.



Utilizing Doc's Diesel Filters for vehicle maintenance offers remarkable cost savings. The best aspect is that quality is not compromised, as all of Doc's products meet or surpass OEM standards. This is particularly crucial for diesel engines. I anticipate many years of usage from my two diesel Jeeps, and regularly changing all the filters with Doc's filters every 5000 to 7500 miles will significantly contribute to the longevity of my vehicles.


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