As our VWs get older it will eventually begin to lose oil pressure. And we may notice that our oil light comes on earlier near idle, and takes longer to go off as we accelerate.Some might think that this is the oil pump is going bad. This is rarely the case. As the engine wears, all of the oil clearances grow larger, and the oil flows through the bearings (etc.) with much less resistance, and the result is less oil pressure. Of course the ultimate or eventual solution is to rebuild the motor. Nonetheless our engine may be running fine, and still has some life left in it. Yet some are annoyed by that flickering oil light, so they decide to go with a larger oil pump for the present. Here is where we need a little education on oil pumps. While they may look about the same, and will fit into the case, there are differences that matter.