| Take everything you read in a for-profit magazine with a 5 lb bag of salt. The magazines' primary objective is to make money, not to inform. When the magazines review products from companies that advertize in them, it creates a conflict of interest since cash is at stake. Are they going to say that a big can of toluene from a paint supply place (that doesn't advertize in the magazine) performs as well as an overpriced bottle of it marketed to car enthusiasts by a company that heavily advertizes their product in magazines? Probably not, since there's no incentive to do that, while there's a big incentive to make the advertizer come out on top in the tests.
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