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How often to change fully synthetic engine oil?

23K views 155 replies 32 participants last post by  securityguy1  
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Change it every oil change too. Can’t be too careful.
Never ever changed an oil pan plug...NEVER! NEVER had a leak...GM trucks or otherwise. Only rare exception...changed out crush washer under the head of the oil pan plug on wife's Subaru Outback per O/M manual.