| 摘要 |
<p>A process and method for manufacturing an improved engine oil comprising mixing ferric fluoride with ZDDP to form an additive mixture, heating the additive mixture to at least 125 degree C for at least 4 hours to produce a pre-reacted mixture, and adding the pre-reacted mixture to a fully formulated engine oil not containing ZDDP. Also disclosed is an engine oil prepared by a process comprising mixing catalyst with ZDDP to form an additive mixture, heating the additive mixture to about 60 degree C to produce a pre-reacted additive mixture, and adding the pre-reacted additive mixture to a fully formulated engine oil not containing ZDDP.</p> |
