Needing some advice here as im stumped. For years the oil
pressure was at 2 at idle and 4 at open throttle. After a 15h motoring session the oil
pressure fluctuates as in the attached video link at the end of the post.
What i have done so far,
(20w30 manufacture spec)
cleaned all lines to oil cooler
cleaned oil cooler
replaced sender unit on gauge
replaced gauge with mechanical unit.
Nothing made any changes, not sure what the next step would be....
Any help would be greatly appriciated.