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Valve Cleaner Spray?

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#1 Greybeard1

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Posted 29 February 2020 - 09:34 AM

Has anyone any knowledge or experience of using a valve cleaning spray on the 1.0L Ecoboost? The direct injection fuel system means that there is no fuel in the air passing through the inlet valves so they don't get 'washed' and can build up carbon deposits, eventually causing valve damage. It seems worthwhile to consider how to avoid the problem, and there are products available that can be sprayed into the throttle body or inlet manifold to clean the valves - but I'm not familiar with the details of the engine and whether it's a good idea. Any comments?