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2018 Kia Soul ! Turbo
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Discussion Starter · #1 ·
Hey all, quick question - Do you folks have any recommended mileage schedule for getting the walnut blast cleaning treatment? Also, for those who've had it, what was the general cost? Ours now has 42k miles so I'm wondering when I should start budgeting for this.
 

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Kia has no such procedure. If you do regular CRC or better yet BG cleaning by injecting the cleaners into your intake with your car warmed up and running you will never need walnut blasting. Even neglected Kias with some seriously carboned up valves don't have those misfires like some other brands. About the worst thing I have seen was like a 180k mile neglected 1.6 liter where there was so much carbon on the valves that the carbon got hot enough and burned a small hole in the one valve.
 
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