Power steering fluid change
Registered User
Joined: Jun 2006
Posts: 2,423
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From: Forest Grove, Oregon
Mopar ATF is only a group III synthetic (a highly refined dino/crude oil that is legally allowed to be called synthetic) and not group IV (man made) synthetic like Amsoil an Redline make.
The paper noted that one alternative was to use synthetic Group IV base stock, which are even more expensive than the ATF+4 solution, which provided Group IV style performance from Group III stock. <-- This info is from the Allpar website. http://www.allpar.com/mopar/transmissions/fluids.html
The paper noted that one alternative was to use synthetic Group IV base stock, which are even more expensive than the ATF+4 solution, which provided Group IV style performance from Group III stock. <-- This info is from the Allpar website. http://www.allpar.com/mopar/transmissions/fluids.html
Registered User
Joined: Nov 2004
Posts: 5,680
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From: McKinney, TX
You may be correct that regular Mopar ATF +4 is not a "group IV". Honestly I don't know. I just know it's good stuff and has served me well.
It is what my owner's manual says to put in the PS reservoir. I wish I had thought to change out the fluid 70,000 miles ago.......but the original stuff that was in it still looked pretty good for 90,000 miles. But from now on im going to suck it out and replace it every 20k. Personally, I don't see any big need to spend more money on the Amsoil or Redline ATF +4. I am sure they will all work great though.
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It is what my owner's manual says to put in the PS reservoir. I wish I had thought to change out the fluid 70,000 miles ago.......but the original stuff that was in it still looked pretty good for 90,000 miles. But from now on im going to suck it out and replace it every 20k. Personally, I don't see any big need to spend more money on the Amsoil or Redline ATF +4. I am sure they will all work great though.
..
I watch wind blow...
Joined: Dec 2006
Posts: 1,390
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From: Red Dirt territory of TEXAS
This is actually good advice! I was trying to think of what else needed to be changed! Totally forgot about the PS! Thanks guys! 
a great mind once told me, " PS fluid is the most overlooked fluid in all vehicles, ours helps with braking so you might keep a closer eye on it"
THANX, RowJ
Always a day late, and a dollar short.
Joined: Nov 2007
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From: Baker, MT
Remove a hose off of the cooler. I believe it's the bottom/inside hose. Keep dumping fluid into the res. until clean fluid comes out. This will flush the cooler. Start the truck and have a helper dump fluid into the res. until clean fluid comes out. This will flush the rest of the system. Re-attach the hose and refill the res. Work the steering wheel until all air is out of the system. Check the fluid level periodically. Use a syringe to suck access fluid out.
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From: Midlothian, TX
Registered User
Joined: Nov 2004
Posts: 5,680
Likes: 2
From: McKinney, TX
I heard him say it too! That is what prompted me to put it into my 20K maintenance schedule. Thanks RowJ!
It's so easy to do, it's silly. Don't make it complicated. Just buy one of those cheap hand pumps from Autozone, suck out what you can, and replace with Mopar ATF+4.
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It's so easy to do, it's silly. Don't make it complicated. Just buy one of those cheap hand pumps from Autozone, suck out what you can, and replace with Mopar ATF+4.
..
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