Originally Posted by xfireFL
Maybe I am wrong (please correct me if I am), but the Crossfire manual and lubrication specs say to use an oil that is SAE 5W-30 or 10W-30?
Am I missing something?
You must have a different manual than all the rest of us have. The only place that I found mention of anything other than Mobil One 0W-40 is that 5W-20 may be used as a substitute oil in the manual tranny.
There is even a warning that the FSS may not work properly without 0W-40. But, it is your vehicle and you can certainly put anything you desire in it.