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Re: Amsoil The book and the oil filler cap on my Shelby GT says to use 5w-20. Amsoil has 5w-20 and 0w-20 oil, no 5w-50. As far as...
Re: Oil I use either Amsoil or Mobil1 in all my vehicles. Amsoil in the motors I change myself and Mobil1 in the motors that get changed at the...
