Pretty much have tried a lot of 5 aftermarket stuff, which is all greaseable. Next thing I'm going to try and find some sealed ones. I had my wife's acura apart here awhile ago and the lube in the sealed joint was more of an oil. Thought about trying like gear oil instead of grease in the...
When they switched sides with the accessories in 96IIRC there was a one year single stat before the dual stats. They're unicorns anymore I had one that I let get away not realizing what I had. It allows the DB2 pump to fit better on later year rigs
I'm not sure boosting the pressure will help at idle. I'd be looking for a low mileage OEM one in a wrecking yard. For what it's worth mine's similar but not as bad. According to the edelman tech he thinks it's not bled good enough. I would think it would self bleed eventually but it's never...
Working the engine that hard you're going to want the cap pressurized. One of the main functions of a pressurized system is to help with the coolant not boiling in localized hot spots. Even if the overall system doesn't get too hot you can still get those pockets of air