I've cut apart quite a few different filters from various manufacturers. Most of the high end filters are just slightly different from one another. Consistently favorable qualities are: High density synthetic filter media Silicone gaskets and anti-drain back Metal media cap Coil spring for bypass device Thicker can and base plate.
Some of these features are hard to identify without an autopsy. But you know it when you see it. Cheap filters tend to have Low density paper media and glued on paper end caps Leaf spring bypass Rubber components Thin can materials I have had good luck with Amsoil, and Purolator Pur1 filters. There are lots of other good ones and lots of bad, but Fram does stand out as being on the bad side. You have 6 opportunities to do a dissection Paul, let us know what you find. Manufacturers that provide their own specifications make shopping easier. I like to find thread and gasket dimensions and then search for the largest possible filter that will still fit the allowed space. I also compare filter media dimensions. Wix, Donaldson, Amsoil all have online references which help you to cross reference and find the best solution. Filter comparison article: https://drive.google.com/file/d/1GWN2wLUqfJ8QbUdxd1z8Jo2L24V2RVQIXLxN0ASuiXxe7ydOlpi8QCpiliBaQa2u449_fyFXE2LXfU8U/view?usp=drivesdk Yanmar filter for QH, HM, GM, YM series engines including Yanmar cross-references and dimensions. https://drive.google.com/file/d/1WY-pDhUDtrCXF_4p2grjp_wBiNDq3y6YDQvZ-UGLZHlReYRL1b6BFY-q_-OC2Wyl0GSm_adnVOQl-x7J/view?usp=drivesdk The Fleetguard FL3812 cross references to a Amsoil EA15K20. https://www.amsoil.com/AmsoilLookups/MasterFilterCrossRef.aspx https://www.amsoil.com/shop/by-product/filters-and-by-pass-systems/oil/amsoil-ea-oil-filters/?Code=EA15K20 Looking at the spec chart you could probably gain a little volume/filter media square inches by moving to a EA15K13 https://drive.google.com/file/d/1yk6IzUYWWzaPy2DDNRx5Ak5wyM0PB5TL/view?usp=drivesdk Josh Muckley S/V Sea Hawk 1989 C&C 37+ Solomons, MD On Sat, Nov 3, 2018, 11:59 AM Morgan Ellis via CnC-List < cnc-list@cnc-list.com wrote: > I agree with Andrew on this one. In the past I was have issues with race > engine and was changing filters often and cutting them open to try to > identify where the wear was coming from. In doing this we cut open several > different makes of filter. Fran were the absolute worst! Since then I only > buy Donaldson filters, as they were head and shoulders above all others in > terms of construction and quality inside. > > Morgan Ellis > SV Meandher > 30MkII > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > >
_______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
