oil filters

fishy68 said
After reading several articles on filters I'm not a fan of Fram either but to answer the question posed by Rani I believe only the filter media itself makes a difference on how much "grit" it catches. But taller filters have the advantage of not just holding more oil but more capacity to hold more grit. If it's an old engine that burns oil that can be an advantage.

I haven't seen proof of this but I'd also think a taller filter would most likely have less restrictive flow because it has more outlet holes (not the holes on the bottom of the plate, the holes down inside the inner tube. The amount and size of the holes can vary by filter brand too.

I read something about that some years ago, and you're right, there are some flow capacity differences between oil filter brands. But, there are also two things that don't change no matter what filter you use, the size of the engines oil intake, and the capacity of the oil pump.

I'm not sure, but I doubt that there is a filter on the market that can't handle the oil pump and flow capacities of the engines they are designated for. At least when they are fresh.