Why don't you tell us why your doing this ?
Are you using a lot of oil?
I was adding about .2qt every few day's, the engine ran fine at 21psi. Never did a compression test, I just got tired of adding oil and replaced the short block.
201,000miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. CHECK your oil, these cars use it.
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