Amsoil Synthetic Motor Oil

Ford Powerstroke Diesel Engine Oil

Ford POWER STROKE Diesel Oil

ford 7.3 liter diesel engine
6.0L Engine

6.0L Powerstroke Engine


We are here to help you achieve optimum performance and longevity from your Ford Powerstroke Diesel truck.


Brand New!!! Diesel Cold Air Intake Systems

  • Amsoil Products for Ford Powerstroke Diesel Trucks
    The 6.0L Power Stroke uses a canister element oil filter on top of the engine. The AMSOIL Absolute Efficiency Synthetic Oil Filter for the 6.0 PSD is Part #EAO-88. The 1994-2003 7.3L Power Stroke Oil Filter Part # is EAO-99. and have a change interval specification of 25,000-miles/1-year. No other company has an oil filter that has these specifications except AMSOIL. When using the AMSOIL 15W-40 Synthetic Heavy Duty Diesel oil or the Series 3000 5W-30 Heavy Duty Diesel oil, the oil filter element must be changed at 25,000-miles/1-year. The specification on the oil is 25,000-miles/1-year, or longer with oil analysis testing.

You've spent your hard earned money on the Ford Powerstroke Diesel option in one of the most popular and best engineered trucks there is, now don't you think you owe it to yourself to use the very best oil in it?  And don't let your local dealership service center tell you that you have to use their brand of oil to "maintain your warranty". That is a 100% false statement by the dealership, yet it goes on day in and day out. We constantly receive calls from customers that were told this by their servicing dealership. This practice is not authorized or condoned by the auto manufacturers, but the fact is it still goes on. 

How a servicing dealership can essentially tell a customer that they have to use a lower quality oil to "maintain their warranty" is not only wrong but it is also illegal unless they provide it free of charge. There are Federal laws that protect you against this.  Please read our Warranty Laws You Need to Know section of this website to learn more.

In a recent  Lubricants World Magazine interview the president of a major national quick lube chain (which is owned by a major petroleum oil company) states thatif they can get customers to shorten their drain intervals by 100 miles it would mean an additional $20 million in revenue for the company per year and if they can get consumers to do one more oil change per year it would mean $294 million for the oil change alone and $441 million in revenue when they include ancillary products and services that go along with the oil change. In fact, the president of the quick lube chain openly admits that the bottom line is profits. The shorter the drain interval the more money the quick lube makes. It is our opinion that they would be more profitable by promoting and installing AMSOIL  extended drain interval synthetic motor oil. It appears that the short drain interval petroleum oils they promote are good at assuring that customers will be back for another oil change in a relatively short period of time.

oil deposit test

Take a look at the varnish deposits in this picture. These are the results of a severe high temperature deposit test.  The one at the far right is AMSOIL Synthetic 15W-40 Diesel oil and the others are major brand petroleum diesel oils. (left to right: Chevron Delo 400, Cummins Premium Blue, Shell Rotella T, AMSOIL (15W-40). The test clearly shows that AMSOIL keeps engines cleaner longer than other major brand diesel oils do. Which oil would you rather have protecting your engine?

We are here to help you learn the facts and show you how you can use AMSOIL motor oil and get a superior product and also increase the  performance and add to the longevity of your Ford Powerstroke Diesel plus save time and money. The Powerstroke Diesel is an excellent vehicle and exceptionally well engineered by Ford Motor Company and International.  In our opinion it is one of the best vehicles ever produced, however there are ways to make the performance and longevity even better with AMSOIL Synthetic Lubricants.

Synthetic Oil Proven to Prevent Turbocharger Bearing Seizure

One of the many specific areas on a turbocharged engine, such as the Powerstroke Diesel  which can clearly benefit from the use of synthetic motor oil is the turbocharger.  When a turbocharged engine is shut off immediately after a high speed run, "heat soak" occurs from the engine, and it considerably increases the temperature in the turbocharger.  Over a period of time this can lead to deposits that can block the oil flow to the turbocharger bearings, leading to turbocharger seizure.  Synthetic engine oils that are inherently more thermally stable than petroleum engine oils have been shown to keep turbochargers considerably cleaner than petroleum engine oils.  A poor petroleum oil will give turbocharger seizure, caused by blocked oil ways, in under 100 hours of a severe "heat soak" test cycle.  A good petroleum oil will survive for 100 hours but with considerable deposits and incipient blocking. A good synthetic oil will maintain the turbocharger in almost "as fitted" condition.  Read on to learn the many more ways in which your Powerstroke  Diesel/ Ford Diesel can benefit from synthetic oil.

Current recommended practice is to change your oil every 3000-5000 miles with petroleum based oil as well as with some other brands of synthetic oils. This is completely unnecessary with the AMSOIL technology that is available today, and has been available since 1972. The auto companies all know about AMSOIL but do not promote it because it is often perceived that it can potentially cause them lost profits in service work, parts sales, quick lube oil changes and on a long term basis, regular repeat vehicle sales since engines, transmissions and differentials have been proven to last longer with AMSOIL Synthetic Lubricants. Several dealerships we have visited stated that they like to keep customers coming in every 3000 miles so they can look the vehicle over and possibly find other components that they can service.

The "3000 mile oil change" is, in our opinion, completely unnecessary.  Many of the same companies that continue to recommend the "3000 mile oil change" in the U.S. currently manufacture and/or recommend, and have for many years, 12,000-18,000 mile synthetic oil changes in Europe. In fact Europe's goal is to reach 30,000 mile oil change intervals in the near future.  

It is also our opinion that the people that run the quick lubes and service centers are there to make profits by seeing you on a regular basis. We know this because we have tried to get some of the quick lubes and dealership service centers to carry AMSOIL extended drain interval gas engine oil (25,000 miles/1-year and 35,000 miles/1-year with the 0W-30) and get the standard response that they know it is an excellent product but if they install it they cannot keep customers coming back as often. AMSOIL then tailored a special top quality reduced mileage extended drain interval oil  (called XL7500) of 7500 miles for gas engine vehicles for the quick lubes so they can keep customers coming back but still give them added convenience of extended drains intervals. This has proven to be an excellent program for all involved.

In addition, many auto and equipment companies have tested AMSOIL and know how good it is and many OEM auto engineers we work with even use it in their own vehicles but we believe they will not use it in production for "political reasons". In fact, we first learned about AMSOIL many years ago when it was determined that a major OEM factory race team uses AMSOIL, yet advertises another manufacturers brand of oil under a sponsorship program.

It is our opinion that oil companies need to sell large volumes of oil and auto companies want your engine and powertrain to have somewhat of a finite life. Enough life so that you are a very satisfied and happy customer and will come back and buy another one yet not so long that you won't need to buy another vehicle for a long time.  Petroleum oil appears to accomplish both objectives. For the last 31 years, AMSOIL has been proven by hundreds of of millions of miles of over the road testing as well as industry standard laboratory ASTM testing to allow vehicles and equipment to perform better and last longer than vehicles using petroleum oil.

The fact is that if every vehicle in the U.S. used AMSOIL that oil usage and waste oil would be reduced by over 80%!  Just imagine the money saved and the positive environmental benefits, not to mention the improved wear protection provided by AMSOIL synthetic lubricants. Plus the fuel savings alone would amount to 3.66 billion gallons of fuel yearly and this is based on 1998 data, the last year Domestic Fuel Consumption data is available from the government. Now, with those hard facts in-hand I find it hard to believe the auto companies are not taking action to go100% synthetic on all lubricants in production vehicles.

I have an article of an AMSOIL user with 731,000 miles on his 1993 Ford Aerostar on the original engine and transmission. He was using AMSOIL from the beginning. This type of mileage is not uncommon when using AMSOIL synthetic lubricants.  Now, what do you think would happen it everybody used AMSOIL and got that much mileage on their vehicles? The auto companies like to hear reports of stuff like this on a small time basis but not on a large scale as it could have major negative economic implications.

Nobody in the business of selling 3000 mile petroleum oil changes and repairing vehicles is going to tell you how to extend your drain intervals using AMSOIL technology and drastically reduce the rate of internal wear and they know very little, if anything, about the technical and engineering aspects of lubrication, filtration and oil analysis science.

Simply changing your oil more often with petroleum oil will not give you all the benefits that AMSOIL offers:  You will not get improved fuel economy, you will not get reduced engine wear, you will not get reduced operating temperatures, you will not get extended drain intervals and you will not save money in the long run.  Please, allow us to show you a better way. We are here to help you. You have everything to gain and absolutely nothing to lose.

AMSOIL has been in business since 1972 and was the first company in the world to develop an API (Automotive Petroleum Institute) rated synthetic lubricant for automotive applications.  They coined the phrase "extended drain intervals" 30 years ago and have been on the leading edge of technology and innovation ever since then. We have many satisfied customers using AMSOIL products in both their commercial, trucking, fleet as well as personal, family and recreational vehicles. We hope you will allow us to show you a proven better way.  We are here to help you and are at your service to assist you in your advanced technology lubrication and filtration needs.

Specifically for the Ford Powerstroke Diesel AMSOIL engineers and manufactures a AMSOIL Synthetic 15W-40 Diesel oil  (as well as Series 3000 5W-30 Heavy Duty Diesel Synthetic) that when used in conjunction with the AMSOIL Nanofiber Technology EAO-99 engine oil filter (7.3L) will allow you to travel 15,000 miles between filter changes and approximately 20,000 miles between oil changes.  This was established by oil analysis testing. If you use oil analysis you can usually go longer than 20,000 miles.  Other AMSOIL benefits include reduced sludge and deposit formation, extreme temperature protection, improved fuel efficiency and rust and corrosion prevention and it does not void any new vehicle warranty. AMSOIL Synthetic Lubricants meet and exceed all API rated and Ford specifications. 

The other option is to install an AMSOIL Dual Remote By-Pass Filtration System.  With this system you only change your oil when oil analysis indicates.  The regular full flow filter is changed at 7,000 mile intervals and the by-pass filter is changed at approximately 20,000 miles (or longer with oil analysis).   The AMSOIL AMSOIL Synthetic 15W-40 Diesel oil  does not break down like conventional petroleum based motor oils, is much more shear stable and does not have the waxes, paraffin's and by-products that come out of crude oil that is pumped from the earth.

The by-pass filter removes the particles that cause wear in your engine down to less than one micron (a micron equals 0.001 mm) and keeps the engine oil analytically clean so you do not need to change your oil for a long time, while still getting far better protection than someone that changes their oil every 3000 miles. We are experienced at installing these units on Powerstroke Diesels and can provide you with exact installation instructions, tips, bracket prints and photographs of our company truck.

AMSOIL Introduces World’s First Oil Filter Cartridge for Diesel Applications with Nanofiber Technology.

AMSOIL INC. of Superior, WI has introduced a new premium, high efficiency cartridge oil filter utilizing nanofiber technology for Ford 6.0L diesel engines. The new EaO-88 is the world’s first oil filter cartridge for diesel applications using advanced submicron full synthetic media. The EaO-88 provides an efficiency of 98.7% at 16 microns, significantly higher than the OEM filter.

The rigid construction of this filter is due to a polymeric center tube and end caps, along with its proprietary composition incorporating special grade nanofiber synthetic media, enabling the filter to last up to 1 year or 25,000 miles when used in conjunction with AMSOIL synthetic motor oil. Because of its improved oil flow, an additional benefit of this synthetic filter media is that oil is delivered to key engine components quicker, thus enhancing the lubrication process during cold weather starts.

Benefits include:

  • Superior filtration efficiency
  • Excellent flow characteristics
  • Reduced engine wear
  • Rugged and durable design

Fast Fact:  A nanofiber is less than one micron in diameter.  A human hair is 80 microns.

For example, the Performance Oil Technology Powerstroke Diesel vehicle #3 has over 85,000 miles on the same oil.  Laboratory oil chemical analysis every 15-20,000 miles indicates the oil is perfectly suitable for continued service. Other customers have traveled well over 100,000 miles and oil analysis still indicates no oil change necessary.  I will mail you a copy of vehicle #3's oil analysis results with your product and technical  information package so you can see the data for yourself. In addition, the AMSOIL By-Pass filter will also remove up to a pint of water from your vehicle's lubrication system, which is especially important in a diesel engine.  Without this the water promotes rust, corrosion and rapid wear. Internal engine heat also creates acids which also wear the engine components.  The water and acids build and continue to work destroying your engine even after engine shutdown.

Oil analysis provides a big return for your small investment by extending equipment life by preventing premature component failure, reducing maintenance costs by eliminating unnecessary component changes and a decrease in downtime due to premature scheduled maintenance as well enabling calculation of optimum drain intervals that will reduce lubricant costs and assure maximum equipment protection.

Your regular full flow engine oil filter will only remove wear particles down to the 20-25 micron range.  The filter cannot remove finer particles because the oil must be filtered quickly while removing most of the particles present in the oil, except the particles below the 20 micron range.  A study completed by Federal Mogul Corp. analyzing over 7000 main and connecting rod bearings concluded that 60% of all engine wear occurs in the 5-20 micron range.  This is why no matter how much you change your current full flow oil and filter, regardless of brand, that you still are not removing the particles that cause the greatest wear in your engine.

The AMSOIL Super Duty engine oil filter utilizes a depth-type lofted fiber media that traps and holds dirt throughout its entire thickness whereas a regular folded paper surface-type filter quickly becomes restricted as debris builds up on the paper surface.  The AMSOIL full flow filter has a finer synthetic cellulose filtration media, 75% greater efficiency and up to 300% greater capacity than other popular oil filters as tested according to the Society of Automotive Engineers HS806 test method. 

If you choose not to install the Dual Remote by-pass filtration system then the AMSOIL Nano Technology full flow engine filter would be of a significant benefit to the long term durability of your engine as well as allowing for 7,000 miles of service on the filter.  When the filter is changed at 7,000 miles all you have to do is top off the oil.  When you reach 20,000 miles you can either change the oil and filter or take an oil sample from the dipstick tube using an AMSOIL sampling pump and send it into Oil Analyzer's Inc. using a pre-paid kit.  Oil analysis will indicate the exact condition of the oil and whether it is suitable for continued service as well as determining if there are any other engine components or wear items that you need to be concerned with.

6.0 L Powerstroke Powercore Air Filters, Fuel Filters and Super Duty Oil Filters


amsoil air filtersTruck sales represent the fastest growing segment of the U.S. automotive market. Over 50 percent of new vehicles sold today are trucks, and now, AMSOIL has expanded that market even further with the addition of premium filters for

Ford 6.0L Diesel PowerStroke™ engine.

PCF-60, EAO88, FFK-60
  • 2003/2004/2005 Ford Excursion w/6.0L Turbo Diesel
  • 2003/2004/2005 Ford Super Duty Pickups w/ 6.0L Turbo Diesel
  • 2003/2004/2005 Ford Vans with 6.0L Turbo Diesel Engine
  • 2003/2004/2005 IHC VT365 (6.0L) Turbo Diesel Engine

amsoil pfc60 air filterAMSOIL now offers premium PowerCore® Air Filters for Ford 6.0L Diesel PowerStroke™  applications. The rugged structure of PowerCore® filters features an innovative, layered, fluted filter media which allows air to enter an open flute while forcing it out an adjacent flute, allowing only clean air into the engine. Dirty air is effectively filtered and cleaned in only one pass through the media.

  • Ten times more efficient than standard filter designs
  • Increases contaminant holding capacity
  • Eliminate media movement, expansion, contracting and bunching
  • Contaminants remain trapped and won't dislodge during servicing
  • Lighter, smaller design simplifies filter servicing.

powercore air filter dust holding capacitydonaldson powercore air filter filtration efficiency

PowerCore® is a registered trademark of the Donaldson Company Inc. These filters are manufactured by Donaldson for AMSOIL®.


AMSOIL FFK-60 Fuel Filter for Ford 6.0L Diesel PowerStroke™ Applications

pfc60 air filter openThe AMSOIL FFK-60 Fuel Filter incorporates both a primary and secondary filter for maximum fuel cleanliness. The primary 10 micron filter, located in the Horizontal Fuel Conditioning Module (HFCM), performs initial fuel cleansing before sending the clean pressurized fuel to secondary four micron filter, mounted to the oil filter housing.

The secondary fuel filter includes a fuel pressure regulator and an orifice on top of the housing that bleeds air out of the housing and back to the fuel tank. Following its trip through the secondary filter, fuel is returned to the HFCM, where it is either directed to the tank or returned to the primary filter.


AMSOIL EAO-88 Oil Filter for Ford 6.0L Diesel PowerStroke™ Applications

amsoil eao filtersConstructed of a highly efficient synthetic blend media, the AMSOIL EAO-88 Oil Filter provides increased engine life and improved filtration efficiency.

The AMOSIL EAO88 is a cartridge-style filter located on the top of the engine. When the filter is removed during servicing, the oil filter housing drain valve automatically opens, draining the oil from the housing to the pan.

The oil filter base of the EAO88 directs oil to the oil filter, engine oil pressure switch (EOP), engine oil temperature sensor (EOT) and turbocharger oil feed. The filter base also includes an anti-drain back check valve, keeping oil in the filter assembly when the engine is shut off.


AMSOIL has a complete line of synthetic oils, greases, transmission fluids, gear lubes, Two-Stage foam air filters, by-pass and full flow filters and filtration systems designed to extend the life of your vehicles and equipment and save you time and money. In addition we also offer a preferred customer purchase option, retail purchase option or commercial account purchase option for businesses. We also offer a Dealership Option for anyone interested in becoming an AMSOIL Dealer and/or purchasing products at wholesale cost.

We do business nationwide and in Canada. If you would please leave your name and mailing address by e-mailing us we will send out a complete information packet in the U.S. mail.

We are committed to excellence in our products, customer support and technical assistance and look forward to the opportunity to show you a better way. Please give us a call or e-mail us.

We offer several options to receive information on AMSOIL. We welcome the opportunity to work with your personally as your servicing AMSOIL Dealer. Our AMSOIL Dealer Group is led by a Truck/Automotive Engineer and Lubrication Specialist with over 19 years experience. This exceptional benefit is unavailable elsewhere.


7.3L PowerStroke Air Induction System (PCIS73)

donaldson air intake system for ford truckAMSOIL now carries a retrofit air induction system kit for Ford truck owners who operate their vehicles in dirty or dusty conditions. Biggest benefits include:

* Improved fuel economy
* Increased horsepower
* Greater filtering efficiency
* Greater filter capacity








Designed for Ford 250-550 pickup trucks built after January 1998 thru to the 2003 model year, this kit has great selling potential. More than one million Ford 7.3L PowerStroke Diesel pickup trucks are on the road today!

See our slide show on the web at: (Opens in new window)
Go To Amsoil Ford 7 PT3 Slide Show

See Pricing Information or Place an Order

The new air induction system brings better performance to Ford owners. Diesel engines need clean, unrestricted air for optimal performance. The new Donaldson 7.3L PowerStroke Diesel air induction system with PowerCore technology provides better air filtration through better engineering.

The PowerCore Air Induction System (PCIS73) replaces the present air intake system and utilizes a Donaldson PowerCore filter to provide unmatched performance and filtering efficiency on 1999 through 2003 model year F-250 to F-550 Super Duty trucks and SUVs with 7.3L PowerStroke Diesel engines.

Greater Filtering Efficiency
The Donaldson air induction system is three times more efficient than the industry-leading cellulose media. The layered structure from PowerCore technology is totally non-metallic and allows for 99.95 percent efficiency. The highly efficient Donaldson PowerCore air filter is the only aftermarket induction system that is approved by Ford Motor Company.

Easy Installation
The new air induction system kit comes with the air filter box fitted with a PowerCore filter, air restriction gauge, temperature sensor, air inlet duct, battery blanket, battery box plate, necessary fasteners and complete installation instructions. The kit installs in 35 to 40 minutes and there are no extra parts to buy.

Greater Filter Capacity
More capacity means more engine protection. The PowerCore air filter has over 16 times more media surface area than washable filters, and 3 times the media surface of conventional filters. The PowerCore air filter has five times more dust holding capacity than washable/reusable air filters and twice the capacity over premium quality traditional filters. Greater capacity also means changing filters less often, even in more severe service situations. When the restriction gauge on the PCIS73 reads in the red zone, change the filter as soon as possible.

John Deere and Freightliner Applications
AMSOIL now offers Donaldson PowerCore filters for John Deere and Freightliner applications. These OEM- recommended filters feature the same rugged, fluted design available in previously introduced PowerCore filtration products. The primary filter available for the John Deere 6020 Series fits both the four cyllinder and six cylinder models, however the four cylinder and six cylinder tractors cannot use the same secondary filter.

  • Amsoil Products for Ford Powerstroke Diesel Trucks
    The 6.0L Power Stroke uses a canister element oil filter on top of the engine. The AMSOIL Absolute Efficiency Synthetic Oil Filter for the 6.0 PSD is Part #EAO-88. The 1994-2003 7.3L Power Stroke Oil Filter Part # is EAO-99. and have a change interval specification of 25,000-miles/1-year. No other company has an oil filter that has these specifications except AMSOIL. When using the AMSOIL 15W-40 Synthetic Heavy Duty Diesel oil or the Series 3000 5W-30 Heavy Duty Diesel oil, the oil filter element must be changed at 25,000-miles/1-year. The specification on the oil is 25,000-miles/1-year, or longer with oil analysis testing.

Phone Orders Call: 1-800-956-5695 and give customer referral number: 1254295


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