Have a older Hardee Ditch Bank Cutter, model 360. Fluid tank says to use 403........but I can not find 403 so am wondering whether I can use the 68 I use in the D5??
I don't know about that cross working or not. I know the Chem Arrow Corporation out of California used to carry 403, because I had some shipped to us at work accidentally a couple years ago. May be worth seeing if they're still in business and could give you some cross reference info.