ATF in the oil - Ranger-Forums - The Ultimate Ford Ranger Resource


2.9L & 3.0L V6 Tech General discussion of 2.9L and 3.0L V6 Ford Ranger engines.

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Old 04-11-2010
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ATF in the oil

My buddy's a wrench head and was tellin me about putting a liter of ATF in the oil about a 1000k before every other oil change can really do a nice job of cleaning ur motor. An1 in here ever do this?
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Old 04-11-2010
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I think a quart of Marvel Mystery Oil would be better and probably safer for the engine.
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Old 04-11-2010
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is that a caustic oil aswell?
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Old 04-11-2010
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I've heard the old mechanic's tale of ATF in the oil to quieten down valvetrain clatter or free a sticking lifter, but never as a cleaning agent.

Best way to clean your engine out and keep it clean, do regular oil and filter changes, use quality materials and you will have no issues.
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Old 04-11-2010
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ATF does work as a cleaning agent. Most commonly you'll hear of running a bottle through with a tank of gas for cleaning injectors and the fuel system.
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Old 04-11-2010
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^^yup....it's a cleaning agent. Hell I use it for cleaning tools! I don't do it much on my newer cars, but I'd run a quart of ATF in the engine oil for a day or so before I change the oil. It cleans out gunk. Back on my old engine in the ranger, I'd use a solution of Lucas Oil fuel treatment and ATF in the gas tank. I saw some good results from it cleaning my gunked out injectors after I ran the truck dry.

Last edited by Fx4wannabe01; 04-11-2010 at 08:35 PM.
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Old 04-11-2010
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I always put a quart of ATF in the day before I change the Oil.
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Old 04-11-2010
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Once, when I didn't have access to a lift, I tilted the transmission pan the wrong way and took an ATF shower. I don't recall feeling that clean.
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Old 04-11-2010
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Haha I will clean grease off your hands like a ****
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Old 04-11-2010
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When I fixed my tcase seal, I only needed 2 quarts to fill her back up. But...I went ahead and bought a gallon just for it's multiuseability. (is that a word!?)
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Old 04-11-2010
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Now before adding The ATF, do u drain some oil out first? or just top up?
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Old 04-11-2010
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SEAFOAM
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Old 04-11-2010
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Quote:
Originally Posted by Downey View Post
SEAFOAM
not 1000 miles prior to the change though... if you use seafoam only put it in less than 100miles prior
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Old 04-11-2010
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an oil change cost what 15 dollars?
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Old 04-11-2010
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Quote:
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an oil change cost what 15 dollars?
whats this have to do with anything?

seafoam is powerful **** and will wreck the oil if you leave it in too long
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Old 04-12-2010
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well not ****
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