quote:Additives are made in concentrated form (usually in an ester format) with mega PPM's of the additive chemical. In order for the additive to be miscable (mixable and soluble) in both petroleum and synthetic oils, group I-III pure paraffininc base oils are mixed-in at the time of manufacture to dilute the additives for example, so one can get an additive yield of say 800 ppm of ZDDP/quart of oil. The amount of Group I-III oils used to dilute the additive(s) is insignificant in the sense that it does NOT affect the quality or characteristics of the base oil or make it less than synthetic. By declaring the diluents are isoparrafinic oils, they are being extremely honest and open in this regard, IMHO. [ May 18, 2004, 05:16 PM: Message edited by: MolaKule ]
synthetic additives containing iso-paraffinic diluents."