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The spec is 40psi. The gauge could possibly be off, but it was holding a steady 30-32 at 2000 rpm. I'm happy with that. That is also with the flushing fluid which is usually thinner than oil.
thats very good, it must make you, just remember that you want to do your next oil change early. that flushing adgent is still in the engine and will break down this new oil quicker than in normally would.