shell is the only company i know of that makes a 10-30 for diesels,the only place i saw it was at the pilot in n.c at mile marker 24 or so,and it was a bit pricey.motorcraft list one with a part number and all but no one stocks it.
home for me is chicago.i know there are loads coming in,i am just not getting them.if there was a company that had a policy that insured two loads home per month i would be intersted in talking to there.