We did the yellow die capsule thing too but Mom got very little cooperation from us so she turned into an "ole runner". My older brothers car would be low in the rear, trunk full of bootleg pre-colored "Ole". She got caught and had to do 2 days on the butter churn on the church steps wearing a burlap dress.
Don't despair on the margarine though, it's ASE certified for wheel bearings and the 1/4 lb packages slip nicely into a hand held grease gun.
Where's my lithium?? Not grease, I mean the medicinal stuff.