Internal Engine Cleaner
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Joined: Apr 2005
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From: Nevada
Internal Engine Cleaner
Went to the local parts store to purchase an additive to clean out the "gunk" in the engine in the "Green Giant", 93 F350 4X4 Crew 5.8, and was told to use automatic transmission fluid. Drain out two quarts of oil from the engine and then replace it with two quarts of ATF. Start the engine and let it idle for about ten minutes and then do an oil and filter change. The two clerks claim it will clean all of the sludge and dirt from the inside of the engine. Personally, I've never heard of AFT being put into an engine as a cleaner. Anyone heard of or tried this with ATF?<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com
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Joined: Apr 2005
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From: Nevada
The "Green Giant" came from the US Forest Service and was used in a very dusty environment. Although the truck was serviced on a regular basis, there is a slight build-up of "gunk" in the engine that I would like to try and remove.
Tuned
Joined: Apr 2005
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I second the ARX suggestion... I just finished the second rinse phase in my '83 F250 with the original 460 (105,000 miles), and we just replaced the waterpump gasket due to a bad coolant leak, and while in there, replaced the timing chain. We were impressed with how clean it was, and what build-up was left was liquified and came off very easily.
As an aside, we used a Carquest timing set (they're one of my vendors) and it was a Cloyes, not the roller kind. I used one for a '70 Lincoln, which has "straight up" timing (not retarded 8 degrees). I can hardly wait to drive it as see if it feels different and gets better mileage.
Final aside: I am a big fan of Stewart Components water pumps and thermostats. They take new, OEM castings and machine them for higher flow AND even coolant distribution between the cylinder banks, plus they use less power to pump coolant - a big bonus. And, they use top-quality bearings and impellers. You can find them at www.stewartcomponents.com I've got a Stewart water pump on my C20, and it has done a great job on a relatively powerful engine.
Back to ARX: it is great stuff!
As an aside, we used a Carquest timing set (they're one of my vendors) and it was a Cloyes, not the roller kind. I used one for a '70 Lincoln, which has "straight up" timing (not retarded 8 degrees). I can hardly wait to drive it as see if it feels different and gets better mileage.
Final aside: I am a big fan of Stewart Components water pumps and thermostats. They take new, OEM castings and machine them for higher flow AND even coolant distribution between the cylinder banks, plus they use less power to pump coolant - a big bonus. And, they use top-quality bearings and impellers. You can find them at www.stewartcomponents.com I've got a Stewart water pump on my C20, and it has done a great job on a relatively powerful engine.
Back to ARX: it is great stuff!
Last edited by Big O Dave; Nov 16, 2005 at 08:35 PM. Reason: mistrakes!!
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Joined: Jul 2002
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From: South Dakota
The Atf won't do jack for your motor.
It's nothing more than a light 10 or so weight oil.
The Auto-Rx is the only worth while motor cleaner out there. I've used it with great experince in all of my vehicles.
It's always cool to rip the filter apart after the cleaning phase.
It's nothing more than a light 10 or so weight oil.
The Auto-Rx is the only worth while motor cleaner out there. I've used it with great experince in all of my vehicles.
It's always cool to rip the filter apart after the cleaning phase.
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Tuned
Joined: Apr 2005
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Originally Posted by superrangerman2002
It's always cool to rip the filter apart after the cleaning phase.
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I'll agree with the Auto Rx being the best engine cleaner out there. It is an ester based product that is similiar to the esters in a synthetic oil. It will work slowly and not strip the engine like a 10 minute flush. These quickie flushes do far more harm than good. The ATF as a flush will not hurt an engine and in older engines might have some benefits but it works by reducing the oil viscosity. For a newer engine requiring a 5-20 oil, the ATF is going to be right at that viscosity anyway so there are no benefits for the newer engines. I have used ATF on my ****** 226 engine to free up stuck valves as it doesn't see much useage and the valves are quick to stick. Other than that, it doesn't really have much business being in the crankcase but you won't hurt anything by running it as an additive.
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