Merkava_4
Thread starter
Originally Posted By: ZeeOSix
Same concern should be heeded with nearly closed up louvers in center tubes. If the center tube flow is nearly choked completely off the filter should go into bypass, but some of the bypass valves in filters may not enable a large enough flow to totally protect an engine.
That's why I won't buy an oil filter with louvers in the center tube. I saw that one picture somebody posted showing the louvers barely punched open -- almost closed. Meanwhile, Fram is staying old school and using holes. It's hard to screw up a hole. It's either there or it's not.
Same concern should be heeded with nearly closed up louvers in center tubes. If the center tube flow is nearly choked completely off the filter should go into bypass, but some of the bypass valves in filters may not enable a large enough flow to totally protect an engine.
That's why I won't buy an oil filter with louvers in the center tube. I saw that one picture somebody posted showing the louvers barely punched open -- almost closed. Meanwhile, Fram is staying old school and using holes. It's hard to screw up a hole. It's either there or it's not.