Motormouth: Heading off valve buildup in Subaru Forester
by Bob Weber, Chicago Tribune
Dec 06, 2019
2 minutes
Q: I own a 2019 Subaru Forester. It has a direct injection engine. DI appears almost unavoidable now. I am very happy with my new Forester but am wondering whether there is anything I can do to ward off the valve buildup that seems to be inherent with this design. I'm not sure whether automotive engineers have figured out how to prevent this issue.
I have
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