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13/07/2025 7:09 am
Topic starter
I see oil catch cans marketed for DI engines to prevent carbon forming on intake valves from PCV system.
1/ Do they work?
2/ Could adding one cause harm (e.g. back pressure)?
3/ Would you, Scotty, add one to any new car with a DI engine?
4/ Do you have a recommended catch can? Please add to your recommended products links.
Be well, Scotty. Thank you.
-Drew
1 Answer
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13/07/2025 7:56 am
Scotty addressed this years ago in his videos, as have others. You might also want to search the board since this has already been discussed here a number of times.
https://m.youtube.com/watch?v=Ap1AH-9UNjU
