I too, change oil frequently. I do spend the extra coin on synthetics for everything there's an application for as I am sold on the added benefits and performance characteristics. To me the additional expense is just cheap insurance. Whether or not there's a shread of validity of this I have no way of proving, other than it gives me peace of mind.
I use a Donaldson P550299 oil filter.
As Josh at Skinny Pedal describes it:
Fits Jeep 4.0 Liter straight 6 engines.
· High capacity 2 quart filter.
· Gain extra oil capacity with the same oil pan.
· 4 times larger than stock half quart filter.
· Filter element is coiled spring retained. Not cheap leaf spring like other filters.
· High flow integral bypass. Keeps clean and dirty oil separate at all times.
· Robust case, almost 20 thousands thick. That’s almost twice as thick as a standard filter.
He sells them for $9 per unit, quantity discounts available.
Donaldson Oil Filter : Skinny Pedal Products!