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🛢️ Power up your diesel—because your engine deserves the best!
Stanadyne Diesel Performance Formula 38566 is a premium 64-ounce diesel fuel additive designed to treat up to 240 gallons of diesel. Approved by major OEMs like GM, Ford, Deere, and Navistar, it improves fuel economy, restores horsepower and torque, and reduces engine wear by cleaning fuel systems. Suitable for all diesel engines across on-road, off-road, and marine applications, this all-season additive meets Cummins L10 cleanliness standards and is manufactured by a leading fuel injection equipment maker.
| ASIN | B000M5QPSY |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #10,498 in Automotive ( See Top 100 in Automotive ) #20 in Diesel Additives |
| Brand | Stanadyne |
| Brand Name | Stanadyne |
| Compatible with Vehicle Type | All Diesel Engines: On Road - Off Road - Marine |
| Container Type | Can, Jug |
| Customer Reviews | 4.8 out of 5 stars 765 Reviews |
| Liquid Volume | 64 fluid ounces |
| Manufacturer | Stanadyne |
| Manufacturer Part Number | 38566 |
| Model Number | 5 |
| Package Information | Can, Jug |
| Part Interchange Info | 38566 |
| Size | 64oz |
| UPC | 753167924442 026508385661 |
| Unit Count | 64 Fluid Ounces |
| Vehicle Service Type | All Diesel Engines: On Road - Off Road - Marine |
B**A
Great Product Highly Recommend for Diesel Engines
I use my oil sampling program to test this product.. After using Stanadyne the iron count in my oil sample decreased. To double check it I did not use it for the next oil change cycle and the iron count went back up. I used Stanadyne no treatment to the next oil change cycle and the iron count went back down. Definitely a good product to lubricate your fuel system and reduce wear on your engine
J**L
Best diesel fuel treatment and best price
This is the best diesel treatment for my 93 Ford F250 4X4 7.3 IDI turbo diesel. Best price too!
B**Y
Stanadyne Diesel Performance Formula
Works great for Diesel vehicles. For lubrication in your vehicle. Helps with gas mileage. Durability is great. It’s a great product to use in diesel engines. You get better performance when you use it. It’s better than other Brands.
R**C
Great viscosity
The mechanic at work suggested this brand.
W**I
Use it!
Been using it in my diesels for years! Best stuff I've found for keeping injectors quiet. Great product from a company that makes injectors!
W**S
Works well
No leakage. We use a smaller bottle to add to fuel tank
T**O
Great stuff
Been using this ever since sulfur got pulled out of marine diesel. Engine is happy, old school injectors are happy, and it hasn’t clogged my diesel heater. What more could you ask for in a fuel additive?
S**.
The best
Good stuff
Trustpilot
2 days ago
5 days ago