Fix the leaking oil cooler line....

Drain all your oil, replace it with pure 15-40w.....use no additives, no miracle in a can product, no lucas, no engine cleaners....just plain oil....

Now I would remove the drivers knee panel and inspect the gauge, it may be leaking....I have changed my oil a few times, and have had a high pressure reading and then accelerating...it would bounce to 0....it was because there was air in the line....if your gauge is leaking....then when you turn the engine off, it will suck air....

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