On a shelf in my garage sits a truly shocking collection of oil filters ... oil pressure to lubricate your parts (i.e. you won't risk a "dry start"). The second interesting valve is the bypass ...

Brands include AC Delco, Bosch, Fram ... plastic valve at one end of the filter element with a spring that can be overcome by pressure. As the name implies, it causes the oil to bypass the ...

THE FRAM Ultra ... used with synthetic oil. Even though this filter is recommended for synthetic oil, it’s compatible with any oil type or viscosity. PTFE-coated bypass valves Great dirt holding ...