If you use the search function in the top right side of your screen, you will see this question has been answered many times. Just get molybdenum grease for all zerks except for the rollers. Use Chevron Dura-lith 00 on the rollers.
D46U straight blade,D46U cat angle blade,allis chalmers AD4 grader and Khoering 404 dragline. D4C 40A,D4 2T and scraper.
if the seals in your rollers are bad and they won't hold oil then your only answer is to use a thicker oil that won't run out. i use corn head grease in mine and it works fine. i am speaking of the bottom rollers only. as for the rest of the machine you can stay with the recommended grease or oil.
No. 2 grease should be easy to find. Grab a tube of bearing grease and it probably says NLGI No. 2 on the label.
"Corn head" grease is No. 0 and "Cotton Picker" grease is No. 00.
You can order 00 grease through Walmart of all places.
https://www.walmart.com/ip/EP00-Extreme-Pressure-Multipurpose-Lithium-Grease-NLGI-00-35LB-5-Gallon-Pail/176555271
My local Mobil oil dealer has 00 for undercarriage, to my surprise.
Never use moly grease on rolling surfaces like roller bearings. It is only to be used on sliding surfaces. Moly is microscopic balls which are hard on rollers.