I try to keep the 550b lubed. The ram is easy; but the upper/lower links and ram pivot are (were) hard to do. At Northern Tools (I'm sure it available most anywhere), I found this needle tip that screws onto a standard grease gun thread. Cost is about $3.00. From the picture, you can see that it puts out a very fine line of grease. If fits right into the little tiny holes that Dillon puts in the links and the pivot. Press the tip into the hole and give a it a shot of grease. Doesn't take much; but wow, what a difference! The 550b felt smooth before; but it's a whole different level of silky smooth now. You can pick up a cheap little grease gun at any auto parts store for less than $10 with three tubes of moly grease that should last you a lifetime. Thanks to C4W for the lube idea. Dripping motor oil wasn't doing it; and the syringe didn't generate the pressure.