I've settled on 1oz 2-stroke/gal based on the lubricity study and problems with a Cummins 24V injection pump. My recollection is that Howse wasn't great for lubricity. Some Stanadyne version was near the top but is easy to over dose because it is relatively concentrated compared to other options. 2-stroke is readily available and cheap at Walmart sold in gallons. ATF is discounted in the Cummins forums especially used and unfiltered.

I don't believe that the mechanical injection pumps on a 617 nearly as sensitive as electronic newer IPs.

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85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. sold to a neighbor and member here but I forget his handle. The 84 is much improved from when I had it. 85TD beginning to repair to DD status. Lots of stuff to do.