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Replacing the filter with the oil keeps fresh oil moving through a filter that is designed to capture debris. A loaded filter can open its bypass valve and allow unfiltered oil to circulate.

• Filter replacement is paired with oil service.
• The filter is matched to the engine.
• The filter seal is checked after the engine runs.

The filter is replaced alongside the oil rather than left in place for another change. The sealing surfaces are renewed where applicable, and the completed installation is checked for leaks.

• Filter matched to the engine’s specification
• New drain plug gasket or washer where used
• Filter-seal leak check after operation

The engine may still receive oil, but it may not receive filtered oil. Debris held by the filter can then stop being screened from the lubrication flow. An oil-pressure warning, unusual engine noise, or oil that darkens quickly after a change should prompt an inspection.

• Debris can remain trapped in an overloaded filter.
• The bypass valve can permit unfiltered circulation.
• Inspection can consider the vehicle’s service history.

The correct filter depends on the engine’s design and requirements, so the service should use the filter matched to this vehicle rather than a generic substitute. Mike Shaw Subaru fits the engine-matched filter during the oil service.

• Filter selection follows the engine fitted to the vehicle.
• Filters are not universal across engines.
• The filter seal is checked after the engine runs.

Leaving a loaded filter in place can allow the bypass valve to open and unfiltered oil to circulate. Replacing the filter alongside the oil gives the fresh oil a clean filtering element for the next service interval.

• Filter replacement is scheduled every 6,000 miles.
• The filter captures debris carried by the oil.
• Service history helps determine the next maintenance step.

The service is available at 1650 W 104th Avenue in Thornton, CO. Booking gets a filter matched to the engine and replaced alongside the oil, with a leak check after the engine has run.

• Online scheduling is available through the service department.
• The dealership is located near Interstate 25.
• You can review service specials before booking.