QUOTE(wkc5657 @ Nov 27 2018, 02:39 PM)
It is basically a kind of solvent, it is also found within the additive pack in the petrol itself.
The purpose is to wash away soot/carbon throughout the fuel system to maintain the performance of injectors and clean the intake valves.
But for direct injected engines, the effect of this additive is pretty minimal on the intake valves other than on the fuel injectors.
You can read more about this issue by googling intake valve carbon/carbonisation.
The soot buildup on Di engines on valves cannot be helped i guess as there is nothing being injected through the port.The purpose is to wash away soot/carbon throughout the fuel system to maintain the performance of injectors and clean the intake valves.
But for direct injected engines, the effect of this additive is pretty minimal on the intake valves other than on the fuel injectors.
You can read more about this issue by googling intake valve carbon/carbonisation.
That is why Toyota went with their D4-S to curb the problem of soot buildup on the valves.
Dec 1 2018, 03:59 PM

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