De-carbonizing

[StockEngine]

Why NOT Decarbonise?

The first & main reason could be: Why fix something that isn't broken? There are innumerable examples of cars running perfectly well beyond 200,000 kms WITHOUT engine decarbonisation. A perfectly timed maintenance schedule is key.

Does your engine really need to be decarbonised? The symptoms of heavy carbon deposit include pre-ignition (akaknocking) and an increase in cylinder compression pressure (above the recommended values).

21st century engines & newer technology mean that fuel is burnt inside an IC engine more completely and efficiently than ever before. Complete combustion = no carbon deposit.

Decarbonising may improve performance temporarily, but it won't address the reason for such deposits - usually over-fueling, or lubricating oil rising to the top of the pistons. You need to fix the injector / fuel pump settings to prevent carbon deposits in the first place, not clean it up afterwards! If your oil control rings aren't doing their job and you have engine oil coming up to the upper cylinder / top of piston, you need to have new rings / an engine overhaul done. Removing the carbon by decarbonising can actually worsen oil control in this situation.

Fuel additives which are added directly to the tank have some role in cleaning out carbon deposits (they also help in avoiding carbon buildup). These are way cheaper than decarbonising using a machine.

Engine Decarbonising - Demystified - Team-BHP

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Good one brad. Hence its zero popularity worldwide lol.

[JJB]

how much does it cost?

Thanks for sharing guys, actually it is recommended to de-carbonize your vehicles every 10,000 kms or once a year, but it still depends on different situations and owner's free will. If you run 10,000 kms mainly on highway, then it is absolutely true that little carbon will accumulate in your engine. On the other hand, if all 10k is spend on daily bumper-to-bumper mad traffic, then lots of carbon deposit will build up and stay inside, a decarb in this case will surely benefit the performance and lifespan of your engine. Once again, 10k is just a recommendation and really case to case basis, it's up to the owner's observations of the their vehicle's conditions.

* il cilindro, besides swarming your thread with videos only, better to answer questions too so we'll understand your service better. So, how much does one de-carb session cost?