Don't know why this was so hard to find when searching the thread. Anyway, want to flush the engine while doing oil change today, which I've never done before. Am I ok to use about 6 qts of ATF? How long do I run it w/ the ATF? Anything specific to know when draining the ATF out? Thanks guys.
If you really want to flush with ATF (I'll warn you know there is a large contingent on here that are... very vocal about their disapproval of using ATF as a flush), you add 1QT to the oil existing in your engine, idle for 20 minutes, and then drain everything.
Straight ATF will kill your engine in short order.
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Hamal T.
1994 Range Rover County LWB - Sold for Parts
1999 Disco II, 98k, Stock
1999 Kawasaki Ninja ZX-6E - Summer ride to work.
1994 Ford Taurus SHO - Modded Q Ship.
I ran my 1996 disco on straight ATF. No problems. I wouldn't drive it across country like that, but I ran it for 20 minutes or so and then drained it and replaced it with cheap-o wal-mart HD 15w40 farm tractor oil. I drove it like that for a few days or so and then changed the oil and filter with good stuff.
I ran my 1996 disco on straight ATF. No problems...
Yeah, no problems in 20 minutes. Unless you tore your motor apart afterwards to inspect all the internal parts, how do you know there were 'no problems'? Who knows, you may have just reduced the life of the engine by 50,000 miles. In reality, you have no idea what you've done to the motor, if anything, and I don't either.
Drain 1qt, replace with atf, drive it like you stole it, drain, replace filter, fill with oil...the ATF will not damage anything in the motor. ATF has the same additives as Seafoam, Marvin's mystery oil, the lucas shit and the 100 other additives with detergents designed as oil additives. I did this with my D2 on most oil changes, when I had to rebuild the motor because of a bad gas/hydro lock in mexico, there was nothing wrong with any of the major components or any unusual signs of wear
I have helped 100's of people do an ATF flush with hood results.
Normally the people who bad mouth are the ones who have never done it or don't believe in flushing a system out.
When done right it works quite well.
There are manny companies that make engine flushes, Gunk and 109 from BD are two of the most popular ones to use.
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Mike
Retired service manager, member of Solihull Society, SCLR, NCLR and the Santa Barbara 4Wheelers clubs.
99 D2, 3" lift, CDL with Detroit,T.T. lockers, 4:11's,H.D. axles, custom ft/rear bumpers with sliders, a 9500 HSI Warn winch and 5 HID's.
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Engine flush w/ ATF
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