Originally Posted by haugstad5
I bought the Rotella T6 synthetic heavy duty Diesel engine oil as recommended and a K&N filter. Pulled my manual and it says do not use oils with a diesel specification of "CD" or oils of a higher quality than specified. Did I buy the right oil?
Should be fine. Eventually all oils will be above the spec originally quoted in an owner's manual... I think the specs generally change every 1-2 years but don't hold me to that. I'm sure Wikipedia has an article if you are really interested.
I guarantee my 98 & 02 cars speced oils that are no longer made
The key is to use the same weight etc.
Whether you go dino, synthetic or a blend is your choice on the Stryker since dino was specified and the others are a higher refinement. That said you should not go down in refinement if your vehicle calls for X. One of my current vehicles is dino, 2 are blends and 1 is synthetic.