Newbie here: I have a 2002 Pathfinder SE and w/ 44700miles. I'm looking to eventually convert to a full synthetic, either Amsoil or Mobil. I'm curious if anyone flushed their engine prior to conversion. I'm a little nervous about flushing due to leaks occuring afterwards b/c that happened to me on my previous vehicle, albeit it was a 96 Sebring. I've been current on all my oil changes so I don't "think" I need to flush. Thoughts?
Also, what fuel additives have you guys used in cleaning the injectors?
Thanks....
Conversion to Synthetic Oil & Best Fuel Additives
Most people dont experience leaks anymore.
When they do happen they are generally due to a different mechanism:
A new different oil mwith different detergentsm often gets rid of some sludge, which may have assisted in sealing potentially leaking gaskets ( sludge otherwise is a very bad thing of course)
Switching to a new oil with possibly higher detergency, could produce this effect regardless of syn or not.This is a rest risk we cannot remove, if you switch to an entirely differnt line of oils (dinos are getting more and more similiar to each otehr)
So I cant promise you , you wont see leaking, but if you do, its for a differnt reason and it also means, you are dissolving depostis were you<need> them disssolved also.
Syns are geranlly safe to switch, I switched them and again with high miles vehicles (and no flush) with no leaking at all.
But then again all those vehciels were in pretty clean internally.
In summary:
Dont flush ( can cause its own problems if not done correctly) and just switch.
Fuel cleaners:
Choice 1: BG44k , generally can only be bought at stores powerful, works well, if used as directedChoice # 2 Chevron techron injector cleaner:Same active ingredient as BG44k only a lot less, so less care needs to be taken in its use .
Follow directions to the letter in both cases.
Fred..
PS: Welcome to NICO!!..
When they do happen they are generally due to a different mechanism:
A new different oil mwith different detergentsm often gets rid of some sludge, which may have assisted in sealing potentially leaking gaskets ( sludge otherwise is a very bad thing of course)
Switching to a new oil with possibly higher detergency, could produce this effect regardless of syn or not.This is a rest risk we cannot remove, if you switch to an entirely differnt line of oils (dinos are getting more and more similiar to each otehr)
So I cant promise you , you wont see leaking, but if you do, its for a differnt reason and it also means, you are dissolving depostis were you<need> them disssolved also.
Syns are geranlly safe to switch, I switched them and again with high miles vehicles (and no flush) with no leaking at all.
But then again all those vehciels were in pretty clean internally.
In summary:
Dont flush ( can cause its own problems if not done correctly) and just switch.
Fuel cleaners:
Choice 1: BG44k , generally can only be bought at stores powerful, works well, if used as directedChoice # 2 Chevron techron injector cleaner:Same active ingredient as BG44k only a lot less, so less care needs to be taken in its use .
Follow directions to the letter in both cases.
Fred..
PS: Welcome to NICO!!..
Re: Conversion to Synthetic Oil & Best Fuel Additives (JPMGM)
I am also thinking about using the Amsoil XL-5W-20 Synthetic Oill. Because my 02 Honda Odyssey is require 5W-20, so I don't have to buy two types of motor oil in the garage. I also have a 2001 QX4, can I use the Amsoil 5w-20?
Thanks,
Modified by qdao at 11:19 AM 8/23/2005
Thanks,
Modified by qdao at 11:19 AM 8/23/2005