Less than 1% of turbos fail because of manufacturing defects. Most failures are caused by the three ‘turbo killers’ of oil starvation, oil contamination and foreign object damage.

More than 90% of turbocharger failures are caused oil related either by oil starvation or oil contamination. Blocked or leaking pipes or lack of priming on fitting usually causes oil starvation. There are many types of contamination which may be carried by the engine oil into the turbo bearing system and cause damage.

We provide specific timing specifications for common vehicle applications here. If you are looking for something a little more obscure you would need to go to the vehicle manufacturer's manual.

The problem with the word “biodiesel” is that it is a very loose term and there are varying qualities. As far as we are aware, there are few problems that occur in relation to engine components failure with using biodiesel. The same problems with using biodiesel can not be said with regards to the fuel injection component failures.

While some biodiesel fuels seem to be okay, we have seen massive failures as a result of some of the so called biodiesels

You must take into consideration, vehicles fitted with rotary or common rail style pumps that the diesel fuel is being used to lubricate these high pressure components (now reaching pressures of 35000 psi).

While we believe there is a place for biodiesel we would not use it in our own diesel vehicles, regardless of the cost.

Leading fuel injection manufactures Bosch, Denso, Delphi, Stanadyne and Siemens have all signed a joint Worldwide agreement stating that they “cannot guarantee their products against performance or emission failures if inappropriate fuels have been used”.

Most fuel systems are now being developed inline with EN590 (European Fuel Standard) for fuel which has the lubricity properties required for the high pressure injection now required to meet emission standards.

Turbocharger Installation Procedure - Garrett Turbochargers
This video provides step by step instructions for the fitment of a Garrett turbo and checks that should be carried out when installing a turbocharger.

A common complaint, my turbo is leaking oil. Time for a replacement right? Not always! A small amount of oil in the turbocharger is present from when the vehicle is brand new and is not always an issue with your turbocharger. If you are unsure, give our team a call on 1300 305 359 they will be happy to help. 

Unlike a baby, a turbocharger does not require much special attention and inspection is limited to a few Periodic Checks. If aqn engine is not operating properly the following should be inspected prior to assuming that the turbocharger is at fault:

• Fluid Levels
• Any air and exhaust restrictions
• Split Presure hoses or leaking gaskets (eg. manifold to turbo, EGR)
• Sensors such as Air Mass Sensor or Turbo Boost Sensor
• Fuel System (e.g. Worn Fuel Pump)

Many times, fully functioning turbochargers are replaced due to mis-diagnosis. 

Why buy genuine? Non-genuine turbos will often skirt around the issue such a "replacement turbo for original" or advise that they are built to the same specifications. You ned to ask if it is a genuine turbo to ensure you are getting what you think you are paying for. 

What is a genuine turbocharger?

Within the turbocharger industry the word genuine is used slightly differently to within the automotive Aftermarket industry.

There are five major manufacturers of turbochargers worldwide that supply turbochargers to the Origingal Equipment Manufacturer (eg. Nissan, Holden, Mack, CAT etc) as well as to the aftermarket. These manufacturers are  Garrett Advancing Motion, Borg Warner, Holset, IHI and MHI (Mitubishi Heavy Industries) and BMTS Technologies. 

Denco Diesel and Turbo only supply genuine turbochargers from these renowned turbo manufacturers. 

How can I improve my fuel economy?

In many cases resetting or replacing the injector nozzles will improve fuel economy. We recommend that you have your injectors serviced every 100, 000kms.