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Old 06-25-2009, 11:15 PM   #1
pnoye2
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Default 300K+ mile Complete Engine Flush!

Here's a simple "DIY" - Compliment of (BDAZZG1) Tony


Cleaning agents...

- 1 qt. of 20w-50 motor oil (cheap stuff)
- 2 qts. of ATF (cheap stuff)
- 2 qts. of diesel fuel



Oil change supplies...

- 1 gallon of 15w-40 Shell Rotella heavy duty motor oil
- 1 qt. of dexron III ATF (I used Castrol high mileage)
- 1 Napa gold or WIX oil filter



Cleaning steps and procedures... (just the standard "oil change" tools required)

Note: My engine was at operating temperature prior to flushing.

- drain old oil as much as you can then button it back up
- mix cleaning agents in a clean oil drain pan and pour mixture in oil crankcase
- start the car and let idle (NO revving) for 30 minutes
Note: you'll see lots of smoke coming out of the tail pipe right around 10 minutes of idle time.
- turn off ignition and drain oil pan; I'd give it 10 minutes before re-inserting the drain plug
- remove old oil filter and replace it with Napa gold or WIX oil filter
- pour 1 gallon of rotella oil plus 1 qt. of Dexron III ATF into the crankcase



That is it, you're done ...and please, dispose of hazardous chemicals properly!


Just a heads up though; you'll have a trail of smoke (about a mile long) during test drive
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Old 06-26-2009, 12:14 AM   #2
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Why the ATF in the oil change? You're gonna drive on that for 3K miles? I know it has detergents, but isn't that dangerous? Or does the high viscosity oil you mix it with compensate for the insuitable formulation of the ATF?
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Old 06-26-2009, 12:26 AM   #3
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GMan, you're more than welcome to PM (BDAZZG1) Tony for any of your question(s)... and I'm certainly sure he can explain it more better than me
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Old 10-22-2015, 06:25 PM   #4
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Is this a good idea to do if your engine is dirty dark brown?
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