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International Automotive Technicians Network
Re: Oil filter leak cause seal/install/over pressure
Posted to Technical Tips Forum on 4/20/2011

Hi Roger it has been a while since I saw you last. I have investigated a ton of these types of cases. The button formed on the filter bottom is used to identify over pressurization of the oil system. It takes 300 psi to cause it to deform the metal can.

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