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  1. Tripp

    Bel-Ray vs Formula + vs Amsoil

    Ok guys im sure there's plenty of threads on this but I wanna do a new one so I don't have to spend a lot of time searching lol... So, how does Bel-Ray Primary stand up against Formula + and Amsoil Primary.? The Harley Service guy said to only use Formula + and nothing else but I can't find this...