Originally Posted By: gallydif
Well well well- ZeeOsix. I know we haven't always exactly seen eye to eye in the past and frankly, am surprised you commented in my thread. Nice that you did though. Yes, I do care for this car. You're right- it won't kill me to spend $9 on a filter but I may have a heart attack for using it for more than 1 OCI though lol. Old habits die hard so to speak. So Bosch's tear like the P classics and Pure1's huh? I'm going to have to look into this as I didn't know about this until now
Which one comes out to have the supposed better efficiency rating? What formula would you use so I can do it next time:
Carquest red: 94.1% efficiency rating @ 20 microns.
AC Delco PF52: 98% efficiency rating @ 25-30 microns.
Those two filters will be about the same efficiency since one is a little lower at a smaller micron size.
If you change oil every 2500~3000 miles I wouldn't worry about leaving an Ultra on for 2 OCIs over a 2 year period. Lots of people do 2 OCIs per one filter change, and it really doesn't hurt anything especially if the oil only has 3000 miles or less on it. Honda has been doing it forever (with much longer OCIs than 3K), and I would trust those Honda engineers know it's OK to do. If you are looking for high efficiency, then the Ultra also fits that bill.
Well well well- ZeeOsix. I know we haven't always exactly seen eye to eye in the past and frankly, am surprised you commented in my thread. Nice that you did though. Yes, I do care for this car. You're right- it won't kill me to spend $9 on a filter but I may have a heart attack for using it for more than 1 OCI though lol. Old habits die hard so to speak. So Bosch's tear like the P classics and Pure1's huh? I'm going to have to look into this as I didn't know about this until now
Which one comes out to have the supposed better efficiency rating? What formula would you use so I can do it next time:
Carquest red: 94.1% efficiency rating @ 20 microns.
AC Delco PF52: 98% efficiency rating @ 25-30 microns.
Those two filters will be about the same efficiency since one is a little lower at a smaller micron size.
If you change oil every 2500~3000 miles I wouldn't worry about leaving an Ultra on for 2 OCIs over a 2 year period. Lots of people do 2 OCIs per one filter change, and it really doesn't hurt anything especially if the oil only has 3000 miles or less on it. Honda has been doing it forever (with much longer OCIs than 3K), and I would trust those Honda engineers know it's OK to do. If you are looking for high efficiency, then the Ultra also fits that bill.