Products offered by Peak/Herculiner

What is Diesel Exhaust Fluid (DEF)?

Diesel Exhaust Fluid (DEF) is one of the key elements of the Selective Catalytic Reduction (SCR) process used by Diesel Engine builders to meet EPA 2010 regulations. Diesel Exhaust Fluid is a nontoxic solution of 67.5% purified water and 32.5% ultra pure automotive grade urea. Diesel Exhaust Fluid is not a fuel or fuel additive. Instead, when injected into the exhaust stream and passed over a catalyst, Diesel Exhaust Fluid helps convert NOx into nitrogen gas and water vapor – two harmless and natural components of the air we breathe. 

Why BlueDEF Diesel Exhaust Fluid?

BlueDEF® is stable, colorless and odorless, and meets ISO Standards 22241 for purity and composition and is an American Petroleum Institute (API) certified diesel exhaust fluid. These are the highest quality and safety standards in place to ensure optimum SCR performance.

How Diesel Exhaust Fluid Works:

When injected into the exhaust stream with a specialized dosing module, BlueDEF’s water vaporizes, leaving ammonia molecules en route to the catalytic converter; once there, it converts NOx molecules into harmless nitrogen and water vapor—making for cleaner emissions.  Making sure you do not run out of BlueDEF® in an SCR equipped truck is simple – watch the DEF gauge, which is part of the diesel fuel gauge, for when it is time to refill. DEF is stored in a dedicated tank next to the fuel tank on the driver’s side. The tanks range in size from 6 to 23 gallons depending on the truck’s application.

The DEF tank fill opening is designed to accommodate a DEF fill nozzle to ensure only DEF is put into the tank. A diesel fuel nozzle will not fit into the DEF tank opening. Our patented closed liquid dispensing system provides everything you need to effectively dispense your BlueDEF®. For BlueDEF® to work well product integrity is critical, and our dispensing systems are the only way to maintain this quality. These reusable systems are also cost effective by providing a significant savings over single-use containers. BlueDEF® dispensing systems are available in configurations for fleets, retailers and commercial applications. BlueDEF® is key to helping improve fuel economy by up to five percent while simultaneously reducing exhaust emissions.

ABOUT PEAK

No big oil execs and zero hype

PEAK’s parent company, Old World Industries, is an independent, family-owned business that has been a leader in the development and distribution of high-quality automotive products for over four decades.

Yes, there’s a 40-year history of American ingenuity constantly pushing and never settling for less than quality products at a fair price. Forty years of entrepreneurs developing products for the most extreme climates & working conditions that equal billions of miles on the road in big rigs and billions of hours of heavy equipment in the mines and on the farm.

The PEAK brand has always been a little different – and always about the customer. We’re not here to sell you more performance than your car needs just to make a few extra dollars.

Great products. Great prices. Do right by your ride and your wallet. 

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