Oil changes
Post Fiend
Joined: Dec 2002
Posts: 6,245
Likes: 1
From: IL, USA
Changing oil and oil filter on the 7.3:
http://www.FTEs diesel forums.com/fo...ead.php?t=3558
I switched all my trucks to Valvoline Premium Blue 15W-40 now.
http://www.FTEs diesel forums.com/fo...ead.php?t=3558
I switched all my trucks to Valvoline Premium Blue 15W-40 now.
Freshman User
Joined: Oct 2007
Posts: 31
Likes: 0
Originally Posted by F250_
Yes, but the improved filtration takes out particulates, not dissolved materials, which is what the UOA was testing for.
I like my OilGuard system and will keep it. If I had to do a bypass over again, I would go with the FS2500 system. I passed on the Amsoil system due to reports about potentially reduced main oil flow through the motor due to pressure drops coming frmo the 10% bypass flow. These reports were verified by Amsoil's Technical Support personnel, and the issue seems to be dependant on how far away from teh motor the bypass elements are mounted (closer is better).
The OilGuard unit bypasses only 5% of the total flow, which works fine for me since I do a lot of extended 1.5-2hr drives every month. I'm not sure what the bypass rate is for the FS system, but I have come to believe that it is the premium system available and would recommend it ahead of the OilGuard.
As for the Amsoil synthetic, I would go with either the Schaeffer or Rotella-T oils. I've had excellent results from Amsoil syns on my gassers, but not as happy on the diesel side of things.
I like my OilGuard system and will keep it. If I had to do a bypass over again, I would go with the FS2500 system. I passed on the Amsoil system due to reports about potentially reduced main oil flow through the motor due to pressure drops coming frmo the 10% bypass flow. These reports were verified by Amsoil's Technical Support personnel, and the issue seems to be dependant on how far away from teh motor the bypass elements are mounted (closer is better).
The OilGuard unit bypasses only 5% of the total flow, which works fine for me since I do a lot of extended 1.5-2hr drives every month. I'm not sure what the bypass rate is for the FS system, but I have come to believe that it is the premium system available and would recommend it ahead of the OilGuard.
As for the Amsoil synthetic, I would go with either the Schaeffer or Rotella-T oils. I've had excellent results from Amsoil syns on my gassers, but not as happy on the diesel side of things.
