I'd say that you would be safe with any namebrand synthetic. I've always been partial to Castrol products but don't think there is really that much difference between synthetics. I run whatever synthetic is on sale in my Dak. It's too easy to over think this stuff. Just keep it changed when it should be changed. As long as you are not neglecting service intervals it shouldn't matter what you use. I run synthetics but still change at 3000 miles just because that's what the owners' manual says to do.
