Honestly,
I haven't used all the diesel oils, but I have used Rotella and Delo 400. Something that I notice with the different oils that I get on my hands is the perceived lubricity, both before and after washing my hands. High quality motorcycle oils tend to have a degree of lubricity that is difficult to wash off (my hands are usually dry and absorb a lot). I don't notice this with Rotella, I do with the Delo. I have moved towards using the Delo 400 where applicable because of this. I know this is not a direct relationship to engine lubrication, but it is good enough for me.

 

Oil threads. Oh, my!

I ordered a case of the SuperTech filters from my local Wally World when I bought my bike based on articles that I read here. A week later I show up to collect my filters and they don't have them. I'm pissed and they know it so they order again. This time I get a call. We have your filters. In fact, we have two cases of filters for you. I get to the store and they have the first order, the re-order and one to put on the shelf.

I looked around so see if anybody was looking for idiots. I bought all three. May sound extreme but I was feeding three bikes with the same filter at the time. I'm still feeding two. I got another couple years before I have to be concerned about filters.

By the case they were $1.47 each.

KD who used to hang here some always said the best oil for the Superhawk was Rotella. Not the synthetic - just the old-school white bottle. He said it was low in detergent action and that's why he liked it best. He once said, "It's just pure lubrication - not all the extra ****." KD is a jet mechanic, Heuy, Cobra, AH64 - now does freighters for Fed X.