So i do see merit in your points about it being 4wd and 3000lbs+ and a 3pt weight box, but the fact remains that IF: you ever sit there spinning 3 out of 4 tires (or 4 if you're lucky!), THEN: adding hundreds more lbs of weight in the rear tires WILL move that threshold up a bit and give you more pulling/pushing power than you had before.What's all this talk about traction? The op's CK27 has 28 engine hp. CK27's come standard with front wheel assist. He will never need fluid in the tires for traction. Different tires maybe but not fluid.