Welcome to the pack. I too went from a '48 8N Ford to a CK30hst almost 10 years ago. Nothing like stepping up 60 some years. It does make work much easier on the operator. Not that familiar with the DS but it seems similar in specs to mine other than you have 4 more horses and have the shuttle shift. My diesel engine has run flawless. I do use a fuel additive because mine needs to work in single digit temps during Winter and I don't need the fuel gelling which probably isn't a problem for you. I can say that it starts as reliable as the old Ford flat head. I don't have a block heater but use Rotella synthetic 5W-40 engine oil. Down to about 25', one cycle of the glow plugs works fine. Below that, I run two cycles before starting. Diesels take a little time to warm up so when very cold, let it run @1500rpms to warm up for @10 minutes. I follow the maintenance schedule as in the manual and probably grease everything a little more sooner. At each service, check the loader brackets to frame mounting bolts. They can come lose and if a continual problem, blue loctite usually fixes it. Anywhere a rotating shaft enters the tractor trans case, lube with spray lithium grease. Such as 4x4 shifter, brake shafts, etc. These areas can corrode/rust and become stiff. Mine has Industrial tires the same size as yours unless you have Ags or Turf. I keep the fronts at 50 (spec), especially needed for loader work, and the rears at 20 (30 is spec) or they just run on the center of the tires. If you have a full heaped load of sand, gravel, dirt in the loader bucket, the back will be light and bounce as you travel depending on the ground. I always have an implement on or members load the rear tires. I never used a shuttle shift like yours but other members find them very easy and shifts 100 times better than the Ford. Mine is second nature to me after 10 years and you might have other questions or pointers I missed. Other members will give you tips and there is a wealth of user knowledge on this forum. Just ask and the members will help. Enjoy the new tractor and many happy hours of work.