Is this oil good for my sr20det? It says it's for heavy duty Diesel engines but from what I could find on fourms most people say to run 10w-40 or 15w-40 :
Shell Rotella T6 Full Synthetic 15W-40 Diesel Engine Oil (1-Gallon, Single Pack) : Amazon.ca: Automotive
Shell Rotella® T6 Extreme Temperature Assorted-Viscosity Heavy-Duty Synthetic Diesel Engine/Motor Oil, 5-L | Canadian Tire