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TCXtrail Profile
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Date Registered: 09-2013
Location: Adelaide, South Australia
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posticon Dealer 'Fuel System Flush'

Hi all,

I have just dropped off my 06 STS for a Nissan Dealer 110,000km service and had the usual up-sell of the $90 Fuel System Flush. I reluctantly agreed.

I queried what this involves and was told that they connect the entire fuel system to a machine that flushes detergent through it for 50 minutes. Another Nissan dealer used to offer a 'Fuel System Treatment' for about half price that turned out to be adding a bottle of injector cleaner to the fuel tank.

Can anyone offer any advice or knowledge on weather this is required, how often etc? Am I throwing money away?

I seem to get pretty good fuel economy and have no starting or running problems.

Thanks, Trent.
22/Jan/2014, 9:00 am Link to this post Send Email PM   Send Private Message Blog
jalalski Profile
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Date Registered: 02-2004
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Sorry Trent, but this is a complete waste of money.

If you are using quality (brand name) fuel in your car and the car is being serviced regularly, you should never need to do fuel system flush, especially when your fuel economy is perfect.

Some dealers make money on these so called "extras", so avoid them at all costs.


22/Jan/2014, 9:47 am Link to this post Send Private Message MSN Blog
mfeodoroff Profile
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Date Registered: 09-2012
Location: Brisbane
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I agree with Jalal.

The theory sounds great, but in reality the dealer has not identified a problem with your vehicle and suggested this as a remedy.

I did have a proper injector service once on a previous car. The guy cam out, removed all injectors and ran each one through a ultrasonic cleaning device. He then replaced the little filters on each one and re-installed everything. It worked out at around $20 per cylinder, but it was a long time ago! I could see the results on each injector as he cleaned each one.

For what it's worth though, I throw a bottle of Nulon "Total Fuel System Cleaner" through every once and a while (10,000kms +), which claims to clean all aspects of the fuel system (not just the injectors). I've used it in several cars and always noticed good results (and I maintain all my cars very well). At around $23 a bottle, I highly recommend it.

I just pulled my throttle body apart for a clean and thought it all looked pretty good..a little soot, but nothing to write home about...then I remembered using TFSC a few tank fulls back emoticon


Mark (X-2639)
2011 ST Series IV 4x4 with CVT in Precision Grey
Cooper CS5s, Tinting, Towbar, Bonnet Protector.
Mods: Steering Wheel Lights, Bash Plates, DBA Slotted Rotors

22/Jan/2014, 10:45 am Link to this post Send Email PM   Send Private Message Blog


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