This is what I thought, that guy did his best to convince me that this oil was great for a diesel, I didnt buy it and luckily I found the reciept for it.

Point well taken, C rated oil it will be.

Im leaning heavily towards using the Dino Rotella, would there be any problem going back to dino now since there is already snyth in the crankcase? I dont forsee any issues but anything I should do or watch out for?

I ask because I have only ever used synthetic oils on motorcycles (gearboxes do seem to love it), never in cars or trucks so switching back and forth is completely foreign to me.

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87 300SDL (Silver/red)
08 VW GTI (Sold)
89 F250 5sp turbo diesel
00 Triumph Sprint ST (4sale)
00 Polaris Xplorer 400 4x4
09 Kawi KLR