When engines get old and they wear, the tolerances open up and the oil can flow through easier, causing the oil pressure to be reduced, the same thing happens when the oil gets hot, it gets thinner and it flows easier. This does not mean the engine is shot, by any means. It just means that you might consider a higher viscosity oil at the next oil change. Consider it within normal parameters.
Sunday, January 23rd, 2011 AT 10:36 PM