I am using the wix 51515 oil filter. I notice the check valve on the filter inlet holes appears to be pushed back after in service awhile. After this happens I believe all the oil drains back into the oil pan after the engine sits awhile allowing air into the filter and oil galleys. I am having intermittent noise problems with hydraulic lifters (pumping air into lifters?) and wandered if this could be the source of the problem. Has anyone else experienced this problem? Is there any other brand of filter that doesn't experience this problem?

Thanks,

Roger