08LGT80 Posted May 10, 2010 Share Posted May 10, 2010 Hi everyone, Who here uses engine additives like duralube, restore, zmax, amsoil, lucas oil, etc. etc. etc.? Which one offers the best protection against wear? What is the difference between the $30 brands and the $6-10 brands? Any proven results from these additives? Thanks! Link to comment Share on other sites More sharing options...
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