hosrom_951

Quick history. The car was ALWAYS running on Mobile 1 15w~50 synthetic oil with the gauge reading 3~3.5 BAR WHEN WARM AND 2BAR WHEN DRIVEN HARD.. Took it for service, and repairing front shocks and cleaning the ground connections. nOW THE GAUGE READS 2.0BAR WHEN warm and reads just under that when driven hard. BUT, my mechanic said that he adjusted the poly V belt for the compressor, MAYBE, he screwed around with the crank bolt? but SOMETIMES when cold, the oil pressure drops to 0, and tapping the cluster a few times would bring it back up......any ideas before i yell at him?