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Hi: Would the installation of a Motorguard By-Pass Filter be fine in a car that was occasionally used for drag racing and road racing? In other words, would the lubrication of the engine be adversely affected at higher rpms and load? Thanks. John

Hi: I don't put that many miles on my car. I realize that Auto-RX can stay in the engine for a year or more (provided the carrier oil is still OK). My question is: Can you use 2X the recommended dose for only 1/2 the recommended miles (i.e., 750 miles) and achieve the same results? Thanks. John

Hi: I am going to purchase a bypass filtering system for my 96 Caprice LT1, which I would like to keep for a long time. I have narrowed down my choices to either the Amsoil (single remote) or reworked Motorguard units. The Amsoil unit appears to require less servicing (25K/annually per Amsoil...