I will highly recommend you using silicone oils, weights 5k, 7k, 1k. My car useed to have grease and I putted in some silicon oils 5k, 7k, 1k, and man, it really works much better, you will feel the car muche better in every single way. Grease is usually all of the same thikness and isa not nearly as good as silicone. Go for silicone!!!