It seems the Diesel oils, such as Delvac 1, AME/S3k are the top of the line oils from each company. It's also been said that AJ Almatuzio and most ExxonMobil engineers run the S3k and Delvac 1 oils. So for extended drains, and even regular drains, wouldn't a good SJ rated HD oil such as the ones mentioned above be the way to go? Engine cleanliness seems to be the most important factor in keeping a well running engine. I assume the Diesel label scares people off from it but as Tooslick mentioned in another thread, these are usually your best oils.
[ November 24, 2003, 07:29 PM: Message edited by: buster ]
[ November 24, 2003, 07:29 PM: Message edited by: buster ]