Diesel engine decarb

[Transporter]

I'm of the old school that considers 150k as being fully run in.

So, you must be changing the engine oil every 5,000km/3 months intervals then. In which case your diesel engine will last 1,500,000 km and you will easily get 500,000km from your TSI.

[Ryeman]

So, you must be changing the engine oil every 5,000km/3 months intervals then. In which case your diesel engine will last 1,500,000 km and you will easily get 500,000km from your TSI.

Either way the 'bottom line' makes savings questionable.
Todays cars are white goods, sadly

[benough]

My BMN TDI has done 240,000km and it's not caked or bogged up.

Drive it hard and often, and you'll be fine

[ozrcboy]

I've used this product.

Followed the instructions in the vendor's youtube clip:
https://www.youtube.com/watch?v=gsB6-287Kag

Was on my wife's TDI golf, which tends to do quite a few short trips for school bus pickup etc. Had come up with a potential EGR valve fault (although it may have been a bad battery).

Certainly was stuff cleaned up by this - engine responsiveness and power seemed better (confirmation bias perhaps?), but didn't see a measurable change in fuel economy etc. However, the engine fault light hasn't come back.

[Karlos]

I used it yesterday actually and haven't really noticed any major changes to be honest! I put it in just after the maf but before the turbo. Like you I followed the instruction but can't help but wonder if it may of been better if I'd taken off the egr inlet and sprayed in through that despite the trouble?!


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[Umai Naa!!]

It doesn't break down the baked-on carbon around the EGR.

The oily residue, yes. The sludge, maybe.