I cut open a Amsoil EA059 used for my boat, and was very surprised that it has no bypass valve. So I looked up a bunch of competitors- Amsoil EA024, M1-302, Purolator etc. and found that all the cross-referenced filters and larger but compatible sizes also do not have a BPV. The specs at the Purolator site, and some other site I found indicate that no BPV is designed into this spec. I find this very odd, as I thought all high end filters would have a BPV.
Boat is a Mercruiser, 2000 MPI 7.4 L , essentially a marinized version of the L29 454. I am feeling very uncomfortable running a filter with no bypass valve. Boat is only used in temps above 50 F, with 20w50 oil. The Ams EA024 and M1-302 are oversized filters with about 50-75% more capacity.
Boat is a Mercruiser, 2000 MPI 7.4 L , essentially a marinized version of the L29 454. I am feeling very uncomfortable running a filter with no bypass valve. Boat is only used in temps above 50 F, with 20w50 oil. The Ams EA024 and M1-302 are oversized filters with about 50-75% more capacity.
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