That is odd to me. I would think that the particulate loading in a filter without a pressure relief bypass would actually increase efficiency as the captured particiulates themselves add to a matrix that blocks flow of additional particulates. I wonder if the loss of effeciency for full flow...
My assumption was that bypass filters become more effective as they fill up with particulates. When they finally plug, they no longer get hot as oil is no longer entering the filter. Then you just have the primary filter, which I change on schedule anyway. I suppose I could rig up a temp gauge...
that was my initial thought, but Amsoil specifically will not confirm that these meet the same specs and they don’t look identical online. Wix doesn't offer three separate sizes either. there’s probably no way to know given the secrecy around supplier agreements.
I have three vehicles with Amsoil bypass filters, all for different reasons.
I went to buy new EaBP filters from Amsoil and they are all on extended backorder.
Amsoil recommends using a Wix WL11042 filter.
Amsoil doesn't have any filtration specs that they will share, and Wix doesn't...
My skid steer (Case 450) specs 10w30 oil for the hydraulic system (17 gallons) and drive chain oil (2 gallons each side). Given the volumes involved price is an issue. I usually just run whatever I find cheapest. Currently that's Traveler conventional at $84 per 5 gallons or ultra1plus at 77 per...