Right from the jug.
Delvac 1 5w-40
Synthetic, multigrade, super premium motor oil for most severe high performace diesel and gasoline engines in highway, off-highway, farm fleets and inboard mairne applications.
Delvac 1 High Performace Synthetic Heavy Duty Motor Oil exceeds the following requirements:
-API Service CG-4,CF-4, CF/SJ, SH
-Mack EO-M, EO-L PLUS SPECIFICATIONS
-Cataerpillar 10TBN requirements
-Detroit Diesel 7SE 270
Excellent engine wear protection
Outstanding soot thickening control
Improved Oil consumption
Extended drain capability
Reduced bore polishing and engine scuffing
Provides fuel savings
Extreme low and high temperature service
Compatible with conventional motor oils
No, I'm not a saleman for Mobil. I have been very happy with this product and wanted to share with OSO members. I used it in my Merc 502 and loved it! Will use it again in my 496 HOs when I get my new boat!