Here is an independent test I did for my car. I went from seeing 20 in Copper to 11 and 13 in the next two tests after adding in Ceratec.
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[Track] 03 AW/CIN 6MT E46 M3
[Street] 08 AW/FR 6MT E92 M3
[Tow/Overland] 23 Toyota Tundra HV TRD Off-Road
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