I was re-reading a thread about the FJ and the oil filter design got me thinking. MC said he could basically do it w/ Amsoil stuff. Would like to hear how to pull this off. Use by-pass filter? See: http://www.amsoil.com/storefront/bf.aspx . I replied to a thread once before asking if anyone had ever used a Frantz filter http://www.wefilterit.com/ but no one replied. I'm sure the Amsoil spin on for the by-pass is much better than the Frantz (essentially a roll of TP w/o perforations for each sheet...but you can actually use TP if you want to), but costs more. I would like to get a setup like this, use synth, change out the by-pass filter when oil unclean, top up the oil, and not change oil until about 10 to 12 K miles. Not sure where/how to mount the by-pass filter or which one to get: http://www.amsoil.com/bypassfilters/applicationguide.aspx , BMK-11 or BMK-13? Any thoughts on this, MC? You research it, let us know how-to-do-it, and I'll be sure to place an order for the set-up with you.