If your using a synthetic or high mileage oil as your regular oil. Assuming you have previously cleaned your engine with the Auto-Rx Program, 4 ounces of Auto-Rx is the right maintenance amount per oil sump.
If your using a conventional oil including Group !!1 such as Castrol GTX or Amsoil XL or Pennnzoil in the yellow bottle and Assuming you have previously cleaned your engine with the Auto-Rx Program, 3 ounces of Auto-Rx is the right maintenance amount per oil sump.
-- Edited by Frank Miller on Sunday 1st of November 2009 02:48:40 PM