Diesel Fuel Pump Seal Leak Fix

Peter Maher - The Man Behind Liquid Intelligence

Peter Maher – The Man Behind Liquid Intelligence

You can call Peter now on 1800441163 or 02 8188 2060 (7am to 7pm seven days a week – including public holidays – except Christmas Day) for a chat about product and application information or to simply purchase Liquid Intelligence.

Direct From The Manufacturer

Liquid Intelligence Ptyc Ltd
All Enquiries To:
Technical Support Office
& Main Warehouse
Unit 8 / 12 Eddie Road
Minchinbury NSW 2770
Technical Support & Ordering
7am to 7pm seven days a week – including public holidays – except Christmas Day
Factory Hours & Site Visits
7am to 4pm Monday to Friday

Australian Enquiries: Free Call
1800 441 163
or
02 8188 2060
(7am to 7pm seven days a week – including public holidays – except Christmas Day)
To call from outside Australia:

  • If You Are Calling From New Zealand: The Liquid Intelligence Number Is 00 61 2 8188 2060 (9am to 9pm NZ Time)
  • From USA/Canada: 011 61 2 8188 2060 (5pm to 5am NY Time… 2pm to 2am LA Time)
  • From UK/Europe: 00 61 2 8188 2060 (10pm to 10am London Time)
  • All others: Google your international dial code +61 2 8188 2060
Do You Have A Leaking Diesel Fuel Pump?This Might Cost A Lot Of Money To FixThis Is Your Best First Option Alternative To Save You Time And Money.

“Liquid Intelligence 229 Will Fix Diesel Fuel Pump Leaks by Swelling and Softening And Rejuvenating Nitrile Fuel Pump Seals. Guaranteed.”

It Really Does Do Exactly What It Says
Like No Other Product Can

This Product Comes With A Technician On Tap

With my special guarantee you have everything to gain and nothing to lose… it’s that easy… and our free technical support can advise you every step of the way… like having a technician on tap.

We understand that everybody’s application can be unique or out of the ordinary. To be sure of the best result call Peter on 1800441163 or 02 8188 2060 (7am to 7pm 7 Days A Week) and have a chat about your particular application.

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Two Year Money-Back
Satisfaction Guarantee

Ideal For All Diesel Fuel Pump Applications:

Liquid Intelligence 229 Will Fix Diesel Fuel Pump Leaks by Swelling and Softening And Rejuvenating Nitrile Fuel Pump Seals. Guaranteed.

Whilst some seal leaks can be substantial, and will require the diesel pump to be replaced or serviced. Most leaks are minimal and don’t need to be mechanically repaired. If your leak is similar to this one then Liquid Intelligence 229 Diesel Fuel Pump Seal Leak Fix would be a logical alternative to an otherwise very expensive repair.

 

Liquid Intelligence 229 Diesel Fuel Pump Seal Leak Fix – Video On How It Works

 

Successfully Fixes Diesel Fuel Pump Leaks. Recommended For:

Recreational Light Commercial Heavy Commercial Road Haulage
Earth Moving Cranes Late Model Work
Forklifts Farm Machinery Boats Ships

The Liquid Intelligence 229 Diesel Fuel Pump Seal Leak Fix formulation contains a unique combination of ester and phenol additives. When added to diesel fuel, the ester and phenol chemical combination swells and rejuvenates nitrile diesel fuel pump seals – completely eliminating leaks.

Application Ratio: One litre of Liquid Intelligence 229 per 10 to 20 litres of diesel fuel.

Who Is This Product For?

Motor mechanics with clients who cannot afford a mechanical fix
Home users… application is simply to add into the fuel tank.
Diesel truck operators who do not like the down-time required for mechanical repair.
Diesel owners who wish to try an inexpensive first option (with a proven history of success)
before out-laying hundreds of dollars (and perhaps thousands of dollars) on a mechanical repair.

If Your Diesel Shows Signs Of Leaking Seals There Are Two Options Available

Option 1: Replace or Recondition the Fuel Pump

Liquid Intelligence 229 Will Fix Diesel Fuel Pump Leaks by Swelling and Softening And Rejuvenating Nitrile Fuel Pump Seals. Guaranteed.

Mechanic Replacing a Fuel Pump

This is the most expensive and time-consuming solution. It involves either replacing the entire pump with a reconditioned or brand new unit.

  • Reconditioned Pump (exchange): From $2,500
  • Brand New OEM Pump: $2,500 to $5,000+

The exact price depends on the type of pump:

  • Rotary Pumps (e.g. Bosch VE): Less complex, generally cheaper to rebuild.
  • Common Rail Pumps (e.g. Denso, Bosch CP3/CP4): More advanced, significantly more expensive.

In most cases, a diesel mechanic will need the vehicle for at least two days to remove, replace, and reprogram the pump. Some models may take longer depending on complexity and parts availability.

Option 2: Seal Rejuvenation with Liquid Intelligence 229

  • Cost: A fraction of the price of pump replacement
  • Action: The advanced phenol ester formulation works quickly to rejuvenate all aged/hardened fuel pump seals
  • Benefit: In many cases, it stops diesel leaks without dismantling or removing the pump

This solution is especially effective for older diesel engines where seal fatigue is common but the pump is otherwise functioning normally.

Liquid Intelligence 229 Will Fix Diesel Fuel Pump Leaks by Swelling and Softening And Rejuvenating Nitrile Fuel Pump Seals. Guaranteed.

A Diesel Leak Repair Can Be As Simple As Adding One Litre Of Liquid Intelligence 229 To Your Fuel Intake.
Liquid Intelligence 229 Will Fix Diesel Fuel Pump Leaks by Swelling and Softening And Rejuvenating Nitrile Fuel Pump Seals. Guaranteed.

Liquid Intelligence 229 Is Successfully Used On Diesel Cars, 4WDs, Light Commercials, Semi-Trailers, Stationary Engines (Generators and Pumps) and Boat Engines.

Summary: Fuel Pump Seal Leak – Your Two Main Options

Option One: Option Two:
Feature Replace/Rebuild Pump Treat with Liquid Intelligence 229
Typical Cost $2,500 – $5,000+ Under $200
Vehicle Downtime 2-4 days (mechanic workshop time) None – vehicle stays on the road
Invasive Repair Requires pump removal, possible ECU recalibration No dismantling or mechanical work required
Success Rate Guaranteed if full rebuild done properly High success rate if seals are aged but not damaged
Suitable For Pumps with internal damage or total failure Pumps leaking due to hardened or dried seals
Ease of Application Workshop-only Do-it-yourself add-to-tank treatment

Liquid Intelligence 229 Is Your Best First Option To Fix Your Diesel Pump Seal Leak. Here’s Why…

A cheaper alternative to an otherwise very expensive mechanical repair
High success rates… Easy and safe to use
Ten years of proven results.
The Liquid Intelligence 229 rejuvenation process can extend seal life for years.
Recommended by seal specialists as the best first option alternative.
Made in Australia and comes with my money back guarantee

What Is The Cause Of Most Diesel Fuel Pump Leaks?

depleted-rubber-seal

Depleted Rubber Seal

Liquid Intelligence 229 Will Fix Diesel Fuel Pump Leaks by Swelling and Softening And Rejuvenating Nitrile Fuel Pump Seals. Guaranteed.

Over time, all inner and outer diesel fuel pump seals can shrink, harden, and start to leak. This is usually caused by the gradual loss of plasticisers— essential compounds that keep the seals flexible, resilient, and leak-tight.

That’s exactly the kind of issue Liquid Intelligence 229 was formulated to resolve. It penetrates deep into the seals, reactivating their original chemistry and restoring lost flexibility and volume. In many cases, this stops leaks entirely—eliminating the need to recondition or replace the pump and potentially saving you thousands in repair costs.

Now, it’s important to understand that most leaking seals aren’t mechanically damaged—they’re just dry and hardened with age. In these cases, where the seal is still structurally intact but has lost flexibility and is weeping or dripping fuel, Liquid Intelligence 229 can often restore it. By rejuvenating the rubber, it helps bring back the seal’s original shape, flexibility, and sealing performance.

However, if a seal is damage—but is not physically broken — Liquid Intelligence 229 may not completely stop the leak, but it can substantially reduce it. In many cases, that level of improvement may be acceptable as a practical and cost-effective solution.

Here’s How It Works:

NBR-Rubber-Seal

Liquid Intelligence 229 Will Fix Diesel Fuel Pump Leaks by Swelling and Softening And Rejuvenating Nitrile Fuel Pump Seals. Guaranteed.

Dripping Diesel Fuel Pump

Diesel fuel pump seals are usually made from a material called NitrileButadiene Rubber — also known as NBR. About 20% of an NBR seal’s makeup consists of plasticisers — chemical compounds that make the material soft,elastic and durable.

Over time, plasticisers degrade, evaporate, or leach out. As a result, the rubber seal becomes brittle, loses its flexibility and shape, and eventually begins to leak.

Liquid Intelligence 229 is formulated with a targeted blend of compounds—primarily phenol esters—a class of chemicals originally used in seal manufacturing to impart elasticity, compression strength, and long-term durability. When introduced into the diesel fuel, these compounds are transported to the dry, hardened seals, where they penetrate the porous rubber and are gradually absorbed. This infusion replenishes lost plasticisers, restoring the seal’s flexibility, volume, and structural integrity. As the seal recovers its original shape and resilience, its ability to maintain an effective seal is restored—often eliminating the source of the fuel pump leak.

Of course, this isn’t an exact science—every leaking diesel fuel pump is different, with varying levels of wear and seal degradation. However, customer feedback has been overwhelmingly positive. Most users report that Liquid Intelligence 229 effectively stopped their leaks and kept their fuel pumps running leak-free for years.

So, if your diesel fuel pump is leaking and you’re facing a costly repair, it may be well worth trying Liquid Intelligence 229 first.

It could be the cost-effective solution you’ve been looking for.

Liquid Intelligence 229 – Diesel Fuel Pump Seal Leak Fix is Smart, Simple and Proven.

How to Use Liquid Intelligence 229 for Fuel Pump Seal Repairs

Liquid Intelligence 229 is highly effective in repairing leaking fuel pump seals. The correct dosage depends on the severity of the leak:

Minor Leak or Seep: Use 1 litre of Liquid Intelligence 229 per 20 litres of fuel.

Dripping Leak: Use 1 litre per 10 litres of fuel for the best results.

Step-by-Step Application Process

1. Add 1 litre (one full can) of Liquid Intelligence 229 to approximately 10 litres of diesel in the fuel tank.

2. Circulate the Treatment: Drive the vehicle back and forth a few times — your driveway will do just fine—and include a few firm stops. This helps splash-mix the treatment thoroughly with the diesel fuel.

Drive or idle the vehicle up to temperature to mix the treatment with the fuel and allow it to reach the fuel pump.

3. Soak the Seals: Turn off the vehicle and let the treated fuel sit in the pump for about an hour.

4. Re-Pressurize the Pump: Start the vehicle and let it idle for 10 minutes to re-pressurize the system. Then switch it off again and allow it to sit for another hour.

5. Repeat the Process: Continue this cycle throughout the day, re-pressurizing the pump every hour to ensure the treatment effectively infuses into the seals.

Why Frequent Re-Pressurization Is Important

The key to success is keeping the treated fuel in contact with the seals under pressure. If the pump is not re-pressurized every hour, the Liquid Intelligence 229 cannot fully infuse into the seals and restore their flexibility.

Expected Results

  • Most leaks are sealed within one day of treatment.
  • If the leak persists, continue the process for an additional day, repeating as necessary.
  • The effectiveness of the treatment depends on the condition of the seals, but success rates are extremely high.
[I was happy to receive these kind words in a recent email]
Hi PeterI purchased your product 229I have an old Nissan 2.7 diesel 4×4It was dripping diesel from the fuel pump which gradually was getting worse.

I bought your product and did this….

emptied the tank down to about 10 litres ( maybe a bit less ) added 229 and mixed thoroughly with a short but rough drive.

left for 5 days

drove for about 10km and left again for 3 days

added fuel to 1/2 tank drove again 10km left again for 3 days

drove again 10km left for 3 days

filled tank and have have used daily since including 2 big trips.

Not ONE drop of diesel has dripped. VERY HAPPY.

Regards

Chris.

(An old Nissan similar to Chris’s)
[And another recent thank you email]Peter I purchased a liter of your 229 diesel fuel pump leak repair and put it in my case ih CX100 your product is amazing. I followed the instructions and left the tractor idle for several hours over a two day period and leaking stopped.I was getting ready to have the pump replaced you saved me thousands of dollars. thankyouDonald Swartz
Ringtown Pennsylvania

Liquid Intelligence A Trusted Brand.

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Full Product Support

For any questions about the use of this product, feel free to chat by phone: 1800 441 163 or 02 8188 2060 (7am to 7pm seven days a week – including public holidays – except Christmas Day)
1_blue_buttonTell us about your issue.
2_blue_buttonTell us the make and model of your vehicle
3_blue_buttonWe will discuss your problem and solution with you and we will recommend the best product for your situation.

We Are Unique… Nobody Else Does This… Call As Often As Needed—We’re Always Here To Help!… From Start to Finish—”BEFORE, DURING & AFTER”, We’re Here to Help Every Step of the Way!

Whether you have questions before, during, or after using our products, our technical support team is ready to assist you from 7am to 7pm seven days a week.

Two Year Money-Back Satisfaction Guarantee

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In appreciation for your business, and to demonstrate our confidence in this product, your purchase of Liquid Intelligence now comes with something extra. In addition to the standard product liability warranty on all Liquid Intelligence products, we now offer a 100% Satisfaction Guarantee.

We want you to be completely satisfied with any Liquid Intelligence product you buy. The Liquid Intelligence 100% Satisfaction Guarantee is our ongoing promise to you that Liquid Intelligence will do whatever it takes to make sure that you are totally satisfied with what you buy from us for two years from the date of purchase.

Liquid Intelligence is the only manufacturer in the business with enough confidence in our products to offer you this unique purchase protection, letting you buy risk free!

How can I make such an outrageous guarantee? Quite simply because I know that Liquid Intelligence works.

It has worked for me, and it has worked for thousands of other customers. And I know that it can work for you.

Quite simply . . . you get to be the judge, jury and executioner if I’m wrong.

Fair Enough?
Dear Reader,

“We Enjoy Receiving Your Phone Calls… Here’s Why…”
The CUSTOMER is definitely the most important person in our business.
You are never a disruption to our work when you call – you are the purpose of it.
You deserve the most courteous and attentive treatment we can give. Because you are doing us a favour when you call with an inquiry.
And we are available to help you from 7am To 7pm SEVEN DAYS A WEEK on 1800 441 163 or 02 8188 2060
Regards,Peter Maher
We Ship Australia Wide

Liquid Intelligence Rewards You With Free Freight For Second and Subsequent Items Added To The Same Order – Absolutely No Limits
International Buyers:
For deliveries out side of Australia please CLICK HERE TO RECEIVE A QUOTATION

We usually reply with a quotation within one to two hours during our Sydney, Australia office hours (7am to 7pm seven days per week.

“This Is Not Just Another Product… Its A Totally Unique Package, Here’s Why”

This Is The Only Quality Product That Has ALL Of The Following:

Superior quality component formulas which are designed and perform to be the best of the best
Unbeatable personal technical advice and support: “You Are Not Alone… When you ring us “We Are Here To Help You” get that problem sorted.
Technical support staff with more than 40 years experience in the industry.
An unparalleled success rate… greater than 95% when combined with our comprehensive telephone technical advice and support.
Made in Australia by an Australian business and exported around the world.

Order Liquid Intelligence 229 Diesel Fuel Pump Seal Leak Fix Online With Paypal Or Credit Cards:

You can pay with your credit card if you don’t have a PayPal account.
Payment is made on the PayPal Secure Server.
View Cart ?
One 1 Litre Can (Treats 10 to 20 litres of diesel fuel):
Free Freight For Second and Subsequent Items Added To The Same Order – No Limits.

$147.00Add to cart

International Buyers:
For deliveries out side of Australia please CLICK HERE TO RECEIVE A QUOTATION
We usually reply with a quotation within one to two hours during our Sydney, Australia office hours (7am to 7pm seven days per week).
YOU CAN ALSO CALL NOW TOLL FREE FROM ANYWHERE IN AUSTRALIA ON 1800 441 163 OR 02 8188 2060 TO ORDER (7am to 7pm 7 Days A Week)
To call from outside Australia:

  • If You Are Calling From New Zealand: The Liquid Intelligence Number Is 00 61 2 8188 2060 (9am to 9pm NZ Time)
  • From USA/Canada: 011 61 2 8188 2060 (5pm to 5am NY Time… 2pm to 2am LA Time)
  • From UK/Europe: 00 61 2 8188 2060 (10pm to 10am London Time)
  • All others: Google your international dial code +61 2 8188 2060

Two Year
Money-Back
Satisfaction Guarantee

Peter Maher’s Minchinbury Warehouse Office Webcam

Webcam Minchinbury Office

Webcam: Call Peter, he is in the office today.
This web cam photo of Peter Maher’s Minchinbury warehouse office is updated periodically during the day.

We are open 7am to 7pm seven days a week – including public holidays – except Christmas Day Sydney time.

CALL NOW TOLL FREE FROM ANYWHERE IN AUSTRALIA ON
1800 441 163 or 02 8188 2060
To call from outside Australia:

  • If You Are Calling From New Zealand: The Liquid Intelligence Number Is 00 61 2 8188 2060 (9am to 9pm NZ Time)
  • From USA/Canada: 011 61 2 8188 2060 (5pm to 5am NY Time… 2pm to 2am LA Time)
  • From UK/Europe: 00 61 2 8188 2060 (10pm to 10am London Time)
  • All others: Google your international dial code +61 2 8188 2060

How Do You get It?

Order by Phone:

Australian Inquiries: 1800441163 or 02 8188 2060 (7am to 7pm seven days a week – including public holidays – except Christmas Day)

To call from outside Australia:

  • If You Are Calling From New Zealand: The Liquid Intelligence Number Is 00 61 2 8188 2060 (9am to 9pm NZ Time)
  • From USA/Canada: 011 61 2 8188 2060 (5pm to 5am NY Time… 2pm to 2am LA Time)
  • From UK/Europe: 00 61 2 8188 2060 (10pm to 10am London Time)
  • All others: Google your international dial code +61 2 8188 2060
1_blue_buttonTell us about your problem
2_blue_buttonTell us the make and model of your vehicle
3_blue_buttonWe will discuss your problem and solution with you and we will recommend the best product for your situation.
4_blue_buttonPurchase is made over the phone and usually ships same day by courier, and yes we do ship internationally.
Peter Maher - The Man Behind Liquid Intelligence

Peter Maher – The Man Behind Liquid Intelligence

You can call Peter now on 1800441163 or 02 8188 2060 (7am to 7pm seven days a week – including public holidays – except Christmas Day) for a chat about product and application information or to simply purchase Liquid Intelligence.


    Send Me An Email:

    If you would like to know more about the technical aspects of these products and how it relates to your particular vehicle... please send me an email and I will usually respond on the same business day.... Peter Maher.






      For International Buyers
      Request A Delivery Quote:

      We ship our products every day to countries around the world using DHL air freight which normally takes only a few days for you to receive.

      Simply specify the product and quantities and your full address (including country) and I can usually reply with a quotation within one to two hours during our Sydney, Australia office hours (7am to 7pm seven days per week) with a full quote including delivery as well as a payment link so you can easily pay online using Paypal or a credit card.

      For example:

      2 x Cans of 230 Stop Oil Leaks

      8274 North Point Lane. Fontana, CA 92336. USA

      Alternatively, you can call us on +61 2 8188 2060 and get a fast quote over the phone.

       
      Regards, Peter Maher

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      Peter Maher - The Man Behind Liquid Intelligence Written by Peter MaherPeter Maher, has been in the chemical industry since he was 18. So that’s more than 40 years he’s been blending, manufacturing and formulating functional automotive and industrial fluids.

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