I am looking at ordering a case of new oil filters, I was going to get the Wix 51060R racing filter but I am not exactly sure what it means when it say "anti drain back valve"

Is this something I need/benefit from or would the standard filter be fine without this valve. My filter mounts vertically just as it would if it were in a car, so what purpose would this valve serve?

The valve is primarily for remote filters, so that the oil in the "loop" doesn't drain back into the pan and give you an overly "full" reading.

Aftermarket oil coolers, remote filter mounting locations, etc benefit greatly from the anti drain valves. Your particular application doesn't need it, but it doesn't hurt either.

MC

Anti drainback valves are needed if the filters are mounted facing down like mine on my 502mpi's. They keep the oil from running out of the filters when you shut the engine off. They will not hurt anything if they're mounted like yours.

Hello,
I am the tech manager at FRAM filters. If you look at an oiling schematic, all oil goes from the pickup to the pump, then has to fill the filter before your engine gets any oil. The ADB valve is a "one way" check valve that opens when the engine is started and closes when it's shut off to keep the filter full of oil. If the filter is mounted in a way that can cause the filter to empty or even siphon the oil back to the pan, it will have an ADB valve. Next- Is this a race boat that sees every weekend oil changes? If not, you should not be using a racing filter. Oil filters are rated on efficiency, meaning the amount of dirt they remove first time the oil goes through. Racing filters are typically 60% or less efficient while high end pass car filters are 95-99% efficient. Racing filters do have a higher flow rate but are designed for RACE cars and boats that get very frequent oil changes. You can get the same flow by using a synthetic media filter like FRAM Ultra, same high flow rate with 99% efficiency. There are other brands with synthetic media as well, you will have to do the research. There are lots of filter tech videos on my youtube channel at youtube.com/cadzillals6

Baja: Wix filters are great but I suggest the 5160 not the R version. The R are reacing filters with less filtration but more flow.

Wannabe

I know the oil filter issue has been well traveled, but are the NAPA Gold filters the same thing as the standard Wix filters, i.e., synthetic media.

Motorking, I have seen some versions of the Fram filters getting some hard knocks on reviews and filter comparisons around the web. Haven't verified for myself if this is fair or not, but wondering if you want to comment. I am aware that Fram has several lines of filters, so maybe it is the lower end ones that are being talked about.