quote:I'd like to think Delvac 1 is synthetic when priced at $35/4L Cdn.? "Product Description Mobil Delvac 1 5W-40 is a supreme performance, fully synthetic commercial engine oil that provides unsurpassed lubrication..."
Better yet, the multiweight "diesel/gasoline" oils (Rotella, Delo 400, Delvac, etc.) have TBNs in the range of 10.1-11.5. These would be your best bet for 7,500 mi drains if you don't want to pay for synthetic.
quote:Honestly since the advent of groupII base oils and premium additive packages the same could be said about synthetics . These new oils are different than a few years back . I estimate cost for oil and filter here to be 11.00 - 12.00 9400 miles on Castrol GTX High Mileage: http://theoildrop.server101.com/ubb/ultimatebb.php?ubb=get_topic;f=3;t=000894 Not to get into a pi$$ing match but there are many oils that get's their job done well .
Originally posted by Doug C: And what is the "Love Affair" with the dino oil? Cheers, Doug