I have a 2003 GMC Envoy with 198k miles on it. I love this vehicle! Lately it's been slugging and losing gas mileage. When I first start it the RPM's immediately go to 1800 or so. I had a friend help me take everything apart. He sprayed while I kept the car running. We then shut it off and let everything sit for 25 minutes. Started it back up with relative ease. The cloud of funk that came out was unbelievable! My sisters car was parked 15 feet away and it disappeared completely from view. It runs better now! Still has some issues unrelated to the cleaning, but WOW!
Yes, I would recommend this to a friend.
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