Do you add extra oil when changing the oil and engine filter without changing the bypass filter.
Sinister Diesel Bypass Oil Filter System for 2007.5-2012 Dodge Cummins 6.7L
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Open Dec 30, 2025 - 09:26 AM
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Dec 30, 2025 - 09:26 AM
Yes, you will add about 1 quart to your system after installing the Sinister Diesel Bypass Oil Filter System for 2007.5-2012 Dodge Cummins 6.7L. This is just a guide, so always check your truck’s oil level after installation and periodically thereafter.
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