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 - 64 OZ.

STANADYNE DIESEL PERFORMANCE FORMULA - 64 OZ.

Product ID: 298106283

Details

Brand
Stanadyne
Liquid Volume
64 Fluid
Manufacturer
0
Package Information
Bottle
UPC
753167924442

⚡Boosts horsepower by up to 10%

⛽Enhances fuel economy by up to 5%

🛡️Cleans & protects engine components

฿13686

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Description

⚡ Drive with power, save with style!

ENGINE TLC - Deep cleans and lubricates critical engine parts to extend lifespan.
MADE IN THE USA - Premium quality you can trust, crafted with precision.
TRUSTED BY PROS - Top-rated formula with a perfect 5-star customer approval.
POWER UP YOUR DRIVE - Unlock enhanced horsepower for a smoother, more responsive ride.
FUEL SMARTER NOT HARDER - Optimize your fuel efficiency and save on every mile.

Stanadyne Diesel Performance Formula (64 oz) is a premium additive designed to boost diesel engine horsepower, improve fuel economy, and provide superior cleaning and lubrication. Made in the USA, this trusted formula ensures your diesel engine runs cleaner, stronger, and more efficiently.

Specifications

Asin	B000M5QPSY
Brand Name	Stanadyne
Container Type	Bottle
Country Of Origin	USA
Customer Reviews	5.0 5.0 out of 5 stars (1) 5.0 out of 5 stars
Liquid Volume	64 Fluid Ounces
Manufacturer	0
Manufacturer Part Number	38566
Model	5
Unit Count	1892.7 Milliliters
Upc	753167924442 026508385661

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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฿13686

Duties & taxes included

In stock

Sold byAmazon ThailandDelivered 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 Thailand.

Secure transaction

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