My neighbor has a torn boot on his 300d and has purchased a split boot kit to use until we can pull the axles at a later date. I was thinking that we could inject the grease with a large syringe into the joint to assist with packing. I keep running across references that the boots also have oil in them as well . . . is this true or is this broken down (liquefied CV grease)? Need the CV expert please! Thank you!