By Peter Somerville
Deputy Head of Sales UK, BU Service

Contaminated Fuel Solutions: What Every DEUTZ Operator Should Know

Fuel contamination is one of the most common and costly causes of damage in modern diesel engines. With today’s high-pressure systems, even the smallest impurities can lead to performance issues, component failure, and serious downtime.

As part of the DEUTZ Expert Series, I’ll explain what causes fuel contamination, how to spot the warning signs early, and most importantly how to prevent it. From choosing the right filters and approved fuels to using DEUTZ additives effectively, I’ll share practical advice to help you protect your engine and keep your equipment running reliably.

DEUTZ DIESEL ENGINE CONTAMINATED FUEL SOLUTIONS

Modern diesel engines, especially those with high-pressure injection and common rail injection systems make very high demands on fuel quality. Insufficiently filtered fuel can not only compromise an engine’s performance, reliability and fuel consumption but can eventually lead to a total failure of the fuel injection system.

Contaminated diesel fuel is the worst enemy of any engine. Water, micro-organisms, wax, hard particles, debris and other sediments can all cause major engine and component damage or failure. Damage to fuel injectors, pumps, lines and solenoids may result in power loss, higher fuel consumption, poor idling or hard starting.

Call us on 01543 438900 or use the form at the bottom of this page to get in touch.

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DEUTZ Diesel engine TCD 2.9 L4 series
Deutz Diesel Contamination Diagram Web

Failing Fuel Pump Symptoms:

  • Rough running engine
  • Hard starting
  • Engine misfires
  • Engine stalls
  • Overall loss of engine power
  • Unusual engine noise

WHAT CAUSES CONTAMINATION?

Fuel contamination can occur in your engine for multiple reasons:

  • Water condensation in the fuel tank can make its way into the fuel system, causing a lack of lubrication which can destroy pumps and injectors. Water in the fuel system can cause corrosion.
  • Dirt and debris or a neglected fuel filter can allow debris into the system that destroys those same components or causes blockage somewhere along the line.
  • Algae can also form in the fuel tank, and if it is introduced into the fuel system, will also cause parts damage and blocked pathways in your diesel.

FUEL ADDITIVES & APPROVED FUELS TECHNICAL CIRCULARS

Deutz Technical Review

Technical Circular
DEUTZ Premium Additives

(Fuel Additives InSyPro®, StartBoost and FlowBoost)

0199-99-01210/7 EN
This Circular supersedes: TR 0199-99-01210/6
Date: 11.04.2024

This bulletin provides technical and safety information for DEUTZ fuel additives.

Click on the PDF icon to download.

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Deutz Technical Review

Technical Circular
Fuels (Diesel engines)

0199-99-01218/6 EN
This Circular supersedes: TR 0199-99-01218/5
Date: 07.11.2022

This bulletin defines which fuels are approved for DEUTZ diesel engines (compact engines) and applies for all air-cooled and liquid-cooled compact engines of the DEUTZ brand. For engines which are no longer in production, this bulletin applies accordingly.

Click on the PDF icon to download.

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DEUTZ Safety Data Sheets

DEUTZ Safety Data Sheets

DEUTZ AG provides information for REACh compliance and safe uses of their products. Here, you can obtain your Material Safety Data Sheets of our products including relevant information of potential hazards and risk management measures.

SAFETY DATA SHEETS

WHAT CAN YOU DO?

It depends. Proper maintenance of the fuel system is your first line of defence to avoid these problems. If the worst does happen, if it’s caught early enough and you’re lucky it can sometimes be solved with a filter change and a flush.

Otherwise, a contaminated fuel system often requires replacement of all the fuel system components, to replace damaged parts and ensure they won’t get damaged again.

Genuine DEUTZ RK05 Replacement Fuel System Kit Bundles are available for this purpose and include new lines, injectors, a new high-pressure fuel pump, and various other components.

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HOW CAN IT BE PREVENTED?

Regular engine maintenance is by far the best way to prevent fuel contamination. The fuel system should be flushed at scheduled intervals, and filters must be changed regularly.

Deutz-Filters

We strongly recommend you only use DEUTZ Genuine Fuel Filters when changing filters. With highly efficient separation of any harmful particle and water in your diesel fuel only genuine DEUTZ Fuel Filters are perfectly matched to your DEUTZ engine to ensure maximum reliability and protection during service intervals.

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IS THERE ANYTHING ELSE CAN BE DONE?

Deviations in local diesel fuel quality pose a significant challenge to maintaining the desired performance and reliability of the fuel system components.

DEUTZ Fuel Additives help to prevent these problems and to maintain the desired performance, reliability and durability from your DEUTZ engine.

DEUTZ Clean-Diesel InSyPro® is a dual-action, 2-in-1 additive: Keep Clean Fuel Stabilizer

Recommended especially for high pressure injection systems every 500 h together with oil & filter change to:

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Deutz-insypro
  • Increase shelf life of diesel fuel and prevents deposits.
  • Prevent filters from becoming contaminated and clogged.
  • Guarantee a safe engine start after longer shutdowns ‘Clean-Up’ cleaning action. Recommended for stand-by-operation and longer periods of engine shutdown.
  • Dissolve deposits in the injection system components.
  • Prevent black smoke caused by fuel deposits, reduced engine performance and increased fuel consumption.

Call 01543 438900 or use the form to request more information

DEUTZ CONTAMINATED FUEL SYSTEM ENQUIRY

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