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LX4 Lubricity Extreme

Resolves CP4 High-Pressure Fuel Injection Pump incompatability issues with American produced Ultra-Low Sulfur Diesel (ULSD) fuel

  • CP4 FUEL PUMP + INJECTOR PROTECTION
  • HIGHEST LEVEL OF FUEL LUBRICITY CONCENTRATION AVAILABLE
  • 2X MORE DIESEL FUEL LUBRICITY THAN THE LEADING COMPETITOR
  • INCREASES DIESEL FUEL LUBRICITY UP TO 56% (ASTM D-6079)

Bosch CP4 Fuel Injection Pump Failure

A fuel injection pump supplies pressurized fuel to the injectors to facilitate combustion and power generation. The Bosch CP4 high-pressure fuel injection pump is found in a wide range of diesel engines around the world. The CP4 pump’s design enables it to handle the demanding requirements of modern diesel engines, but unfortunately, it is prone to failures under certain conditions. 

Properties of the CP4 Fuel Injection Pump

The CP4 pump is a high-efficiency replacement for the CP3 for various reasons:

  • It is made from a lightweight aluminum cast flooded with diesel to lubricate the rotating parts.
  • It has a high-pressure capacity of up to 30,000 PSI, which optimizes fuel combustion for maximum performance.
  • Its small design allows for integration into various engine setups, making it a flexible choice.
  • It hosts a fuel metering technology that controls the amount of fuel directed into the cylinders, ensuring the engine receives enough fuel for optimal combustion, increasing performance and decreasing fuel consumption.

Vehicle Models Susceptible to the Failing CP4 Pump

  • 2011-2016 Chevrolet Silverado 2500HD / 6.6L V8 Duramax LML engines
  • 2011-2016 Chevrolet Silverado 3500HD / 6.6L V8 Duramax LML engines
  • 2011-2016 GMC Sierra 2500HD / 6.6L V8 Duramax LML engines
  • 2011-2016 GMC Sierra 3500HD / 6.6L V8 Duramax LML engines
  • 2011-2016 3500HD / 6.6L V8 Duramax LML engines
  • 2010-2011 Chevrolet Express
  • 2010-2011 GMC Savana
  • 2010-2011 GMC Sierra box-delete
  • Certain 2011-2012 Chevrolet Silverado HD / 6.6L Duramax LGH.
  • Certain 2011-2012 GMC Sierra HD / 6.6L Duramax LGH
  • 2011-present Ford pickups / 6.7L V8 Powerstroke diesel engines
  • 2014-present Dodge Ram pickups / 3.0L diesel
  • 2014-present Jeep Grand Cherokees / 3.0L diesel
  • 2011-2015 Audi A6 / 3.0L TDI
  • 2013 Audi A7 / 3.0L TDI
  • 2013-2016 Audi A8 / 3.0L TDI
  • 2013-2017 Audi Q5 / 3.0L TDI
  • 2012-2015 Audi Q7 / 3.0L TDI
  • 2012, 2014 VW Touareg / 3.0L TDI
  • 2011 Porsche Cayenne/ 3.0 S 4

 

Increases fuel lubricity up to 56% Protects CP4 fuel pumps and fuel injectors from premature wear and failure Increases fuel lubricity by more than double that of the closest competitor Reduces pintle scoring & wear Extends the life of the CP4 fuel pump and fuel system Helps lubricate the upper cyclinder

Symptoms of a Failing Bosch CP4 Pump

Some common signs indicating potential issues with the CP4 pump include:

Ultra-Low Sulfur Diesel (#2 Diesel) = Ultra-Low Lubricity Diesel.

Starting Difficulties

Some owners have reported complications starting the engine. The pump may need help to deliver adequate fuel to the injectors, requiring several attempts before the engine ignites. This issue wastes time and puts strain on the battery.

Loss of Power

As the pump deteriorates, it can lead to a decrease in engine power, making it hard to accelerate or maintain speed. This loss of power can result in accidents where maneuvering or quick acceleration is necessary.

Rough Idling and Engine Misfire

The engine may generate irregular vibrations or unusual engine sounds. These sounds indicate an issue with the fuel delivery system and potential engine damage.

High Fuel Consumption and Engine Failure

A failing CP4 pump can cause an abrupt spike in fuel consumption, which is expensive and causes issues with overall performance. When left unchecked, it can lead to complete engine failure, causing damage to the engine and fuel system.

Why the CP4 Fuel Injector Pump Fails

Over the recent years, the CP4 failure rate has been so high that it has led to several class action lawsuits from vehicle owners seeking compensation in the United States. Although all injector pumps eventually need replacing, the main complaint about the CP4 is that it fails abruptly and contaminates the fuel system.

The main issue is the use of low-lubricity fuel. The lack of lubrication causes friction between the metal parts. During the deterioration of the parts, metal shavings travel through the entire fuel system, including the fuel injectors and the fuel lines, causing more friction and abrasive compounds throughout the fuel’s journey. Factors that contribute to the CP4 pump failure include:

  • Susceptibility to wear and tear when exposed to low-lubricity fuels.
  • Sensitivity to water contamination and lift pump pressure.
  • Formation of air bubbles inside the housing.
  • Reliance on diesel for lubrication and cooling, making it vulnerable to fuel contaminants.
Protect Your Fuel System

The Solution to CP4 Pump Failure

Use Hot Shot’s Secret LX4 Lubricity Extreme

HIGHEST LEVEL OF LUBRICITY CONCENTRATION AVAILABLE

LX4 Lubricity Extreme is a premium lubricity additive for Ultra-Low Sulfur Diesel (ULSD) and gasoline. Hot Shot’s ultra-low sulfur diesel additive contains the highest level of lubricity performance on the market and can put even the poorest quality fuel back into the specification of, and exceed, OEM requirements for lubrication. Use this CP4 fuel system saver to greatly increase fuel’s lubricity and prevent the wear and scarring of key components inside the fuel system, including pumps and injectors. This diesel fuel lubricant is warranty safe and emissions equipment safe.

The Engine Manufacturers Association recommends all diesel fuel should be below the 460-micron specification to protect all fuel injection systems. 3rd party ASTM D-6079 testing of LX4 showed that fuel that was out of specification would be brought down below the 460-micron level that is necessary to protect injectors and pumps from premature failure.
LX4 case study

By increasing the lubricity of the diesel fuel the Wear Scar Diameter is lowered. By bringing the Wear Scar Diameter back below the recommended threshold, excessive wear is prevented. Give your fuel system the protection it needs, add LX4 CP4 fuel system saver to every fill up to save you the time, headache and expense of replacing the fuel system before failure occurs.

100% compatible with other Hot Shot’s Secret fuel additives, including DIESEL EXTREME, EVERYDAY DIESEL TREATMENT and GASOLINE EXTREME. Follow recommended treat rates.

  • 32oz – Treats up to 360 gallons

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  • 4oz – Treats up to 40 gallons

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  • 16 oz – Treats up to 160 gallons

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100% Satisfaction Guaranteed!

 

No other additive has a better guarantee than Hot Shot’s Secret.
If any of our products do not deliver as promised, then we will give your money back.

Triple-Threat Testing Process
We understand what it’s like to be disappointed by products that do not live up to their claims. That’s why all Hot Shot’s Secret products are subject to rigorous, scientific, triple-threat testing:

Testing in our world-class R&D lab
Independent, third-party dynamometer testing
Real-world testing
We know what the results are before you buy the product, ensuring that the product you purchase outperforms the other solutions on the market.

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800-341-6516