Quote:
Originally Posted by GWJ1
Just a survey, how my of you change the oil in the high pressure reservoir? I was on another web page, and mechanic had a video of how and why you should change that oil. He said, that oil doesn't get circulated to good, and you should change to protect the fuel injectors, and to prevent slug from settling in the bottom of the reservoir.
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Your high pressure reservoir holds about a quart of oil. That oil is pumped to the injectors and the injectors then dump it under the valve cover and it is returned to the oil pan. The HPOP reservoir is level is maintained by the low pressure pump with oil from the oil pan. The injector oil/fuel ratio is 7:1. So do the math. For every 20 gallons of fuel you burn you flow 140 gallons of oil thru the reservoir. That is 560 times it's capacity.
The only thing you would accomplish by changing it is, you would get an additional quart of dirty oil out of your engine.