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27/05/2022 12:25 pm
Topic starter
Hello. I have a 2018 mazda 3 sport with the 2.5l. It has direct injection into. Is there anything that I can do to help either clean or prevent the carbon build up on the intake valves? Right now it only has just under 50000km on it and is running fine. But like to try to prevent it from building up and causing problems. Thank you
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27/05/2022 12:32 pm
Using an oil catch can on the PCV system may help a little bit.
But the only solution I know of is to have the valves professionally cleaned (walnut shell blasting etc.) every 40k miles or so.
Thank you. I look into the oil catch can