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Explain Symbols on the Side of Mobil 1 Extended Performance Oil Filters
 
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Question:
Explain Symbols on the Side of Mobil 1 Extended Performance Oil Filters
On the side of the filter, there is a series of five symbols. What do they mean?  
-- Marcie Kim, Goleta, CA
Answer:
The symbols on the side of the can or shell are the installation instructions.
1.) Clean the gasket surface.
2.) Put a few drops of fresh oil on the new gasket.
3.) Hand tighten until the gasket surface meets the mating surface.
4.) Tighten an additional ¾ -1 more full turn.
5.) Check for leaks.
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