Im very familiar with macs 6401 carb cleaner, the older formula that is no longer available thru napa. My question, is this Berryman 0905 Chem-Dip as strong or stronger than macs 6401?
We do not have much information on the product you mentioned and cannot draw a comparison. What we can tell you is that—unlike some competitive products on the market—Berryman Professional Chem-Dip Carburetor & Parts Cleaner (part #0905) has changed very little since the 1970s with the exception of replacing a single raw material that was discontinued about 15 years ago. We encourage you to try Chem-Dip and think you’ll be pleased with its performance.