1. jbrickman0000

    Hexagonal boron nitride as an additive

    Just realized that one of my happier yet very out-of-band habits hadn't made it here yet. For several years I have been adding one ounce of 2.5-micron HBN to oil changes in my '98 Chevrolet Tahoe. Usually I mix it with one of the quarts of oil. Definite improvement. Feathering the gas...

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