-40 Mobil 1 Amsoil Royal Purple comparison

We did a test at -40 between all of these oils let me know what you think in the comments and if we missed a brand you think we should test

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• #motor
• #oil
• #test
• #40
• #amsoil
• #mobil
• #royal
• #purple
• #cold
• #motor_oil_comparison
• #mobil_1
• #synthetic_oil_chemical_compound