We at Auto-Rx feel that the customer is best served by using a simple conventional oil. People have asked for a list of approved synthetic oils for use with Auto-Rx. While this is not an all inclusive list, there are enough mentioned in ample availability to suit most needs. They span most blenders.
Amsoil = limited to XL line.
Castrol = Syntech with the exception of 0w-30 imported from Germany
Shell, Pennzoil, Quaker State = All
Motor Craft = All
SuperTech
If your engine has "Special" needs e-mail me and describe them . We will try to come up with a working application.
