does it contain antigel

The performance does have a antigel the winter formula is for extreme cold weather

Is this compatable with def (diesel exhaust fluid) engines. i'm in ca and have a 2011 duromax.

Like other popular additives on the market, the use does not have any bearing on the use of DEF as the DEF is part of the "after combustion stage" of any modern pick-up truck diesel engine. Stanadyne additive is one of the better additives with regards to helping to keep the injectors lubricated during use which also helps to keep them clean and therefore greatly aides in cooling the injectors which are the 3 components of any good diesel fuel; Fuel for combustian-Lubrication of pumps & injectors-Cooling of Injectors, therefore, longer life expectancy! The idea of increasing the cetane rating might be true for some of the additives one can buy, but that is really not the reason to buy any diesel additive! DEF is injected after the combustion process and only used to help dissolve and burn out any particulate matter being emitted in the exhaust.

How often do you use it? Is every fill up ok?

Yes I use 6oz every fill up it is great for the engine and increases power

What is the dosing ratio of additive to diesel fuel?

.26 ounces per gallon of diesel.

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Stanadyne Diesel Performance Formula 38566, 64 Ounce

Stanadyne Diesel Performance Formula 38566, 64 Ounce

Product ID: 572485623

Details

Brand
Stanadyne
Liquid volume
64 Fluid
Package information
Bottle
SAE J300 Viscosity Grade
5W-30
Vehicle service type
Bus Truck

⛽Universal diesel fuel compatibility

🔥Meets Cummins L10 cleanliness standard

🛠️OEM-approved for top brands

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Description

⛽ Power your diesel, fuel your drive — don’t get left behind!

OEM APPROVED PERFORMANCE - Trusted by GM, Ford, Deere & Navistar for unmatched reliability
PROVEN CLEANLINESS BOOST - Meets rigorous Cummins L10 Superior Test for fuel system cleanliness
ALL IN ONE DIESEL SOLUTION - Tackles virtually every diesel fuel issue with one premium formula
PREMIUM 64 OZ CONCENTRATION - Long-lasting 64 fluid ounce bottle for sustained diesel performance
UNIVERSAL FIT FOR HEAVY DUTY VEHICLES - Perfect for buses and trucks, ensuring broad compatibility

Stanadyne Diesel Performance Formula 38566 is a premium, all-season diesel fuel additive designed to solve virtually any diesel fuel-related problem. Approved by major OEMs like GM, Ford, Deere, and Navistar, it meets the stringent Cummins L10 Superior Test for fuel cleanliness. Packaged in a 64-ounce bottle, this universal-fit formula is ideal for buses and trucks, delivering proven performance and enhanced fuel system protection.

Specifications

ASIN	B000M5QPSY
Automotive Fit Type	Universal Fit
Best Sellers Rank	50,294 in Automotive ( See Top 100 in Automotive ) 274 in Fuel Systems
Brand	Stanadyne
Brand Name	Stanadyne
Compatible with Vehicle Type	Bus, Truck
Container Type	Bottle
Customer Reviews	5.0 out of 5 stars 2 Reviews
Liquid Volume	64 Fluid Ounces
Liquid volume	64 Fluid Ounces
Manufacturer	Stanadyne
Manufacturer Part Number	38566
Model Number	5
Number of Packs	1
Package information	Bottle
SAE J300 Viscosity Grade	5W-30
Size	64oz
UPC	753167924442 026508385661
Unit Count	1892.7 millilitre
Vehicle service type	Bus, Truck

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€ 256.91

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cyprus.

Secure transaction

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