3 votes
1 review
I have been using either ½ or 1 qt of Gunk Engine flush for more than 25 years and had no problems with seals at all, so I have no reason to try another brand.
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The brand is registered in USA.
In March 2026, PartReview does not yet have a formed opinion of GUNK engine flush. You can help by adding a review for GUNK engine flush.
Currently there are 1 review and 3 votes. Average rating — 5 out of 5. Vote balance: 3 up, 0 down.
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