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05-23-2012, 08:04 PM
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#1
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Join Date: Mar 2008
Location: Somerset, NJ
Posts: 4,223
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flushing engine with ATF?
my car is about to hit 100,000 miles and i'd like to do an engine flush to get any sludge out of there. i've heard you can use automatic transmission fluid to do this and it works great. has anyone here ever tried it? and if so whats the proper procedure? another forum says drain the oil, add in the transmission fluid, let it idle for about half an hour, drain the transmission fluid, put oil in and let it idle for 30 minutes, drain that oil, then put the oil in that you'll use for the next 3,000 miles. does anyone do anything different? thanks.
jon
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Jon
1999 Trans am WS6
1996 Corvette LT4 6 speed
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05-23-2012, 08:22 PM
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#2
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Join Date: May 2009
Location: Highland Mills, NY
Posts: 1,915
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Honestly if you have kept up on your oil changes and the car is running good now I wouldn't waste the money and time.
Or use one of the off the shelf products. I'm pretty sure they only use the trans fluid for the detergents.
If you are suspicious of sludge pop off a valve cover and take a look inside.
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2000 Camaro SS 610rwhp/570rwtq LS2 440, 12 bolt 3.73, tranzilla t56
Last edited by MyFirstZ; 05-23-2012 at 08:23 PM.
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05-23-2012, 09:01 PM
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#3
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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I'd let Curt chime in but you could also use seafoam.
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05-23-2012, 09:02 PM
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#4
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Power Member / trans break does not equal transbrake
Join Date: May 2009
Location: The Meadowlands
Posts: 4,513
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ive seafoamed a car once. lotsa smoke !
but as for the ATF, ive accually never heard of using it as a flush agent. looks like ill be staying tuned
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99 Z28 - SBE LS1/60e
Motor - 10.84 @ 128 - 1.47 60'
Nitrous - 10.16 @ 132 - 1.40 60"
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05-23-2012, 09:15 PM
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#5
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Join Date: May 2010
Location: Brick, NJ
Posts: 1,868
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I have heard of it being used, I personally would not. I would go with the seaform 3 step cleaning
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Formerly known as blk95formula
86t/a_ram_air on TGO
2018 Silverado 1500
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05-23-2012, 10:12 PM
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#6
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Admin.
Join Date: Aug 2005
Location: Hamilton, NJ
Posts: 20,151
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Quote:
Originally Posted by MyFirstZ
Honestly if you have kept up on your oil changes and the car is running good now I wouldn't waste the money and time.
Or use one of the off the shelf products. I'm pretty sure they only use the trans fluid for the detergents.
If you are suspicious of sludge pop off a valve cover and take a look inside.
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all this.
i'd never recommend an engine flush. what if there is junk? where is it going to flush to?
if it ain't broke....
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Vent Windows Forever!
The looser the waistband, the deeper the quicksand. Or so I have read.
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05-24-2012, 12:00 AM
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#7
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Join Date: Jul 2009
Location: barnegat nj
Posts: 1,340
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Atf works to clean the engine. Its a detergent oil. BUT!!! I have only used it when there was a problem such as a noisy/sticking lifter. Have done it several times and has worked everytime.
As the saying goes, if it aint broke , don't fix it. If you have done regluar maintenience ie: frequent oil changes, there should be minimal sludge/build up inside engine.
Leave it alone. And be on your way.
P.S. One thing you should always flush your cooler, before installing rebuilt transmissions though.....
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Quote:
Originally Posted by SRGN
I never pulled into the staging beams at the track and saw a dyno in the other lane.
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South Jersey Racecraft
Last edited by S.J.SLEEPER; 05-24-2012 at 12:05 AM.
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05-24-2012, 06:19 AM
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#8
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Join Date: Jul 2005
Location: Williamstown NJ
Posts: 479
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I have heard of using trans fluid to clean the engine, but I have never heard of replacing all of your oil with trans fluid. I was told to add one quart of trans fluid to your oil and run the car for 500 miles or so.
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F-Bodyless
01 GMC Sierra C3 6.0L, AWD, Westers Tune, K&N, Hella LED Tails
03 Pontiac Grand Prix GT, GMPP Handling Kit, LS1 F-Body Brakes
Last edited by Mark B; 05-24-2012 at 06:20 AM.
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05-24-2012, 07:22 AM
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#9
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Join Date: Feb 2005
Location: west orange nj
Posts: 2,415
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i heard it works great my uncle does it to his cars all the time i did it on my brothers old jeep it had over 300,000 miles and still ran strong
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05-24-2012, 08:57 PM
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#10
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Join Date: Feb 2010
Location: Stillwater
Posts: 822
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I remember being little and my dad leased a Jeep Grand Cherokee for my mom. That thing went 10,000+ between oil changes. Two days before the lease was up he drained the oil and mixed oil + ATF. The next day he drained it again and put in new oil. The dealer said it was one of the cleanest motors they've gotten back.
Just be careful cause sludge can end up places it doesn't belong.
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Quote:
Originally Posted by LTb1ow
...its cool to like diesels, cause that and pretending to be country is like, hip nowadays!!
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05-24-2012, 09:37 PM
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#11
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Power Member
Join Date: Jul 2006
Location: Old Bridge, NJ
Posts: 2,415
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Don't do it. Just change your oil regularly. Its best if you drain your oil when its hot or atleast warm so all the junk comes out. Besides that I agree if it aint broke dont fix it. You don't want any crap to get stuck in a oil passege and do more harm than good.
Last edited by Fast92RS; 05-24-2012 at 09:38 PM.
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05-25-2012, 06:29 PM
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#12
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Join Date: Aug 2008
Location: Bergen County
Posts: 290
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I wouldn't do it. The potential for damage is greater then the benefit, IMO.
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Drive it like you STOLE it.....
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05-25-2012, 10:48 PM
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#13
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Hippy Mod, Bergermeister Meisterberger, Moderator
Join Date: Aug 2004
Location: Ewing
Posts: 6,213
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Quote:
Originally Posted by 98CamaroSS
I wouldn't do it. The potential for damage is greater then the benefit, IMO.
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Yeah, if the car has had synthetic oil I wouldn't mess with it. If it has 200K+ miles and buildup, then you don't have much to lose. In the non roller cam engines of the past, you could wipe out a lifter if you used a different brand of oil than what was used in the engine but nowadays it's not that big of a deal. Do the other routine maintenance stuff and you should be fine.
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69 Z28 JL8 4 wheel disc brakes - being restored
09 Silverado Z71
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