Flushing Oil Concentrate™
Flushing Oil Concentrate restores pristine cleanliness to the dirtiest of both diesel and gasoline internal components, and has saved thousands of engines from expensive rebuilds.
- Eliminate engine sludge & hard carbon
- Release stuck piston rings
- Reduce smoke, blowby & oil use
- Restore cylinder compression
- Stop diesel engine oil going black right after an oil change
- Use in all engines, transmissions & diffs
- Detergent based – no corrosive or abrasive solvents
Flushing Oil Concentrate is a remarkable product, and is possibly the most effective treatment in removing harmful and performance draining sludge, hard carbon and other contaminants and deposits from oil-wetted engine components. Not only does it restore full cleanliness to the entire crankcase, removing all engine sludge, but it also frees up stuck piston rings, restoring compression and oil control and reducing blow-by.
Use it now before it’s too late! Restore your engine to like new cleanliness and performance. Use it at time of engine oil change.
Flushing Oil Concentrate
Lubricating oil has 2 often-overlooked, yet very important functional requirements – It has to COOL and it has to CLEAN the components it is in contact with. Full, unrestricted flow of clean oil to all parts is essential to provide proper cooling and lubricating ability to the engine. 
Amazingly, this duty is almost universally ignored by mechanics investigating over-heating and/or oil pressure issues in engines, be it diesel or gasoline.
Contaminated Oil Destroys Engines FAST
The problem is that contaminants suspended in oil act as an abrasive, like a grinding paste, but on a smaller scale. Between two sliding surfaces (e.g. piston ring and cylinder bore, or bearing and journal), the presence of suspended contaminants can create abrasive wear. The more contaminants, the greater the potential for accelerated wear. Always make a mental note of the oil’s degree of discoloration. The darker it is, the more contaminants it holds, and the less its ability to protect your engine and the greater likelihood of premature failure.
Most Effective Treatment To Remove Destructive Sludge
The fastest and most cost effective solution to this potentially disastrous problem is to use Flushing Oil Concentrate at the recommended treatment rate. Flushing Oil Concentrate is added to the oil at the time of the oil change to safely dissolve deposits and suspend sludge. It will thoroughly revitalize a heavily sludged engine. Flushing Oil Concentrate contains a highly concentrated selection of detergents and dispersants (not solvents that can cause problems with oil seals, O-rings, even bearings etc.) which enable lubricating oils to dissolve and suspend deposits as a very fine diffusion. In such a way, sludge, gum, dirt and wear metals are removed with the oil change.
Flushing Oil Concentrate is the most effective treatment in removing harmful and performance draining sludge, hard carbon and other contaminants and deposits from oil-wetted engine components. Not only does it restore full cleanliness to the entire crankcase, removing all engine sludge, but it also frees up stuck piston rings, restoring compression and oil control and reducing engine blow-by. Give your engine every chance of a long and serviceable life.
How to use Flushing Oil Concentrate to get the very best result
Detailed Treatment Instruction Sheet: Initial concentrated treatment – Bring engine to FULL operating temperature. Drain old oil and refill with new, clean oil (this can be inexpensive oil for this purpose as it will only be in the engine for approximately 45 minutes). It is a good idea to replace the oil filter/s at this time as possible heavy contamination of the existing filter may occur during the flushing process. Operate the engine to warm up the oil again, then add Flushing Oil Concentrate to engine oil at 0.5 fl oz per quart (12.5 mL per liter) of engine oil. Run the engine at a fast idle, stationary, for 45 minutes. For most small and medium size engines, this means 1500-2000 RPM. For larger size engines (e.g. over 9.0-Liter/550 cubic inch engine displacement), run at about 1200 RPM. Stop the engine and drain the engine oil while it is still hot and replace oil filter/s. Refill with new, quality engine oil.
Continuing maintenance – Bring engine to FULL operating temperature. Add Flushing Oil Concentrate to the existing engine oil at 0.1 fl oz per quart (2.5 mL per liter) of engine oil. Drive/operate normally for 30 – 60 minutes, then continue with normal oil change while oil is still hot. Click here for more details.
Don’t forget – after using Flushing Oil Concentrate to get the entire lubricating system totally clean, add AW10 Antiwear to the new oil to give extra strength to the oil, and reduce component wear and premature oil breakdown and degradation. Significantly extend the long term reliability of your engine, and reduce operational costs!
Choose the most appropriate Flushing Oil Concentrate size for your particular need. Various size options are available –
Flushing Oil Concentrate is added directly to the oil immediately prior to the oil change. It is not recommended to be added to the oil and ran for extended periods of time.
Basically, the initial, hard-working, concentrated flush breaks down and suspends heavy, baked-on sludge – the sludge that causes piston oil-rings to block up and stick in the grooves, oil pumps to reduce pressure, and oil galleries to be restricted. It also dissolves the clumps of hardened sludge on the oil pan and other crankcase components. It assists in the breakdown of hard carbon on the piston skirts, lower compression ring and cylinder walls.
For the very best results, we recommend the following treatment rates –
Initial/Dirty Engine concentrated flush: add Flushing Oil Concentrate to the engine oil at 0.5 fl oz per quart of engine oil (12.5 mL per liter of engine oil).
- 8 fl oz of Flushing Oil Concentrate treats a maximum of 16 quarts (4 gallons/19 liters) of oil
- 16 fl oz of Flushing Oil Concentrate treats a maximum of 32 quarts (8 gallons/38 liters) of oil
- 32 fl oz of Flushing Oil Concentrate treats a maximum of 64 quarts (16 gallons/76 liters) of oil
- 64 fl oz of Flushing Oil Concentrate treats a maximum of 128 quarts (32 gallons/151 liters) of oil
- 1 Gallon of Flushing Oil Concentrate treats a maximum of 256 quarts (64 gallons/302 liters) of oil
Continuing maintenance oil change flush: add Flushing Oil Concentrate to the engine oil at 1/10th fluid ounce per quart of engine oil (2.5 mL per liter of engine oil).
Instructions:
INITIAL TREATMENT/DIRTY ENGINES
Bring engine to FULL operating temperature. Drain old oil and refill with new, clean oil (this can be inexpensive oil for this purpose). It is a good idea to replace the oil filter/s at this time as possible heavy contamination of the existing filter may occur during the flushing process. Operate the engine to warm up the oil again, then add Flushing Oil Concentrate to engine oil at 0.5 fl oz per quart (12.5 mL per liter) of engine oil. Run the engine at a fast idle, stationary, for 45 minutes. For most small and medium type engines, this means 1500-2000 RPM. For larger truck type engines (e.g. Series 60 Detroits, Cats, Macks, Cummins, etc), run at about 1200 RPM. Drain the engine oil and replace oil filter/s. Refill with quality engine oil. Detailed instruction here.
Example:
- 5 quart/liter oil capacity = 2.5 fl oz (60 mL) Flushing Oil Concentrate
- 5 gallon (20 liter) oil capacity = 10 fl oz (250 mL) Flushing Oil Concentrate
- 10 gallon (40 liter) oil capacity = 20 fl oz (500 mL) Flushing Oil Concentrate
CONTINUING MAINTENANCE
Bring engine to FULL operating temperature. Add Flushing Oil Concentrate to existing engine oil at 0.1 fl oz per quart (2.5 mL per liter) of engine oil. Drive/operate normally for 30 – 60 minutes, then continue with normal oil change while oil is still hot.
Example:
- 5 quart/liter oil capacity = 0.5 fl oz (12.5 mL) Flushing Oil Concentrate
- 5 gallon (20 liter) oil capacity = 2 fl oz (50 mL) Flushing Oil Concentrate
- 10 gallon (40 liter) oil capacity = 4 fl oz (100 mL) Flushing Oil Concentrate
Occasionally, on an engine with years or decades of sludge build up, a second follow up concentrated flush may be required soon after the initial flush (600 – 1200 miles, 1000 – 2000km). It is suggested to add Flushing Oil Concentrate to clean oil (as per instructions for the “Initial Treatment/Dirty Engines”), at a rate of 0.25 (1/4) fl oz Flushing Oil Concentrate per quart of engine oil (6.25 mL per liter of engine oil). Operate the engine normally for between 4 – 6 hours, then drain the oil while hot, replace oil filters, and fill with quality oil.
(32 fl oz = 946 mL, 1 liter = 33.8 fl oz)
No Interest! No Fees!* So Easy!
With Klarna you can pay in 4 interest-free installments over 6 weeks.
Split the cost of your purchase into 4 equal payments over 6 weeks that are automatically charged to your card every 2 weeks.
How it works
- Use your own valid debit or credit card to pay (no prepaid cards).
- The initial installment is charged when we complete your order (this is usually the shipping date).
- One of the remaining installments is automatically charged to your card every 14 days after your first payment.
- There are no interest charges with Pay in 4 installments, and no fees* when you follow your automatic payment schedule.
What to do –
At Checkout
- As usual, enter your card billing address, your contact telephone number, and email address, and a shipping address if it is different from your billing address. You will need a valid phone number that can receive text messages as Klarna will text you a security code which you must enter to complete the transaction.
- Choose Yes or No for Unattended Delivery Authority.
- Select the option “Buy now, pay later”
- Click the “I have read and agree to the website Store Policy“ check box.
- Click Place Order.
- Follow the instructions provided.
- Click on Text me the code.
- Enter the code you receive.
- You may be asked to confirm your identity by entering your birth date etc.
- Then just submit the order. Done! It’s that easy!
- We will pack and ship your order within 1 business day (we try to ship the same business day).
When the order is shipped
After we confirm that the order is on its way, Klarna will charge your card for the first installment amount. Klarna will send you a notification once the payment has been processed.
Every 2 weeks
Every 14 days Klarna will automatically charge your card one of the remaining installments until the full order amount has been paid. You will be informed ahead of time.
*No fees when you pay on time
USA Lower 48 States – From our facility in Utah, we ship daily using FedEx Standard Express as our main shipping contractor. Orders are shipped within 1 business day of receipt, and delivery is within 3 business days*. Shipping is free within the lower 48 States for orders over $50.^˜
Please note, FedEx will not deliver to USPS P.O. Box numbers as per USPS guidelines. Please provide a physical street address for shipping/delivery.
Alaska, Hawaii and Canada – we ship to Alaska, Hawaii and Canada at a subsidized rate. Shipping rates are added automatically at Checkout. All prices are in U.S. Dollars. GST & Duties/Fees may apply to Canadian purchases, payable by the purchaser as calculated by CBSA at time of entry.
Canadian customers – if it helps, we can also ship to any USA destination (Lower 48 States) for local pick-up or on-forwarding by a carrier of your choice; for example, you may have your own preferred carrier from the USA to Canada. Free shipping applies to destinations within the Lower 48 States. Ask us for details.
International Orders – We welcome our International customers! Please Contact Us for a shipping cost quote and further instructions about completing your purchase.
Please note – due to certain logistics and Federal Regulations, we are unable to ship to some Countries/Territories.
Need your product in a hurry?! Utilizing the services of FedEx and UPS, we can priority ship your product to your chosen destination*. Just contact us, tell us where you need it and when – we can then calculate the cost and advise you of the shipping details. All prices are in U.S. Dollars.
*We reserve the right to use other shipping suppliers and services as we deem necessary from time to time, depending on prevailing circumstances. Delivery schedules may be affected by conditions beyond our control.
^A $10 shipping charge applies for orders below $50 excluding tax.
˜Applies to retail quantities only. For commercial quantities, please contact us for further details.
“I got your Stop Smoke Diesel Pack for my old 2006 Ram. 5.9. It’s got 286,000 miles, and mostly it is running fine, or so I thought. You can really tell the difference from using the fuel treatments (FTC Decarbonizer and ULS Diesel Enhancer), it’s like night to day! I’ve not done the oil flush yet, but once I get to doing it I will let you know how that goes and keep you posted.”
Adrian R, Reno, NV
“I’ve always done oil changes on our 2006 Silverado 6.6 Duramax on schedule, often around the 5,000 mile mark. I’m a bit of a stickler for conscientious maintenance with it, and believed that regular oil changes using brand name synthetic oil would be sufficient to keep the engine clean. Turns out I was quite mistaken. I heard about Flushing Oil Concentrate from my father who uses it on a number of his vehicles, and thought I’d get some and give the Duramax a flush, not really expecting much. When I did the flush, I was astounded at the amount of sludge and muck that came out with the old oil! I had no idea it could be as contaminated as that! I’m converted! Flushing Oil Concentrate will continue to be an integral part of my oil changes in the future, it’s a must-have…”
David E, Mapleton, UT
“Very fast shipping, and the product does what it claims. I’m a repeat customer of the Oil Flush!”
Bryan S, Lake Elsinore, CA
“Great company, great products!!” (Flushing Oil Concentrate)
Frederick D, Lynn, MA
“These products have made improvements already! Very happy with the results.” (FTC Decarbonizer & Flushing Oil Concentrate)
Will W, Milwaukee, WI