You could have knocked me over with a feather....

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Originally Posted By: OneEyeJack
Have you ever met a real redneck mechanic? I just had the maintenance adventure of a lifetime. This guy bought an Audi A4 with a turbo 4-cylinder engine traded for an old motorcycle because the engine was completely sludged up and a mechanic quoted an outrageous price to swap in a junkyard engine, more than the car was worth to the owner. The dealer was worse, much worse, so it was adios amigo to the Audi for the owner.

The new owner, our redneck friend completely warmed up the engine and pulled into his driveway. He then poured a quart of laundry bleach into the running engine and ran it for about 15 minutes. Then with the engine still running he pulled the drain plug and as the oil drained he poured 5 gallons of used 15w-40 diesel oil (he's a diesel mechanic) in the engine as it ran and oil drained out the bottom into a big pan. As the oil ran out he poured a gallon of new diesel oil in and as he started to run out of new oil he shut down then engine, changed the oil with new 15w-40 diesel oil and a new filter.

His wife has been driving the car for about a thousand miles now with no problems and no sludge. To say I was surprised would be a bit of an understatement.

He said he's going to modify the pan so that it holds 6 quarts of oil and he says if he can get his hands on the jerk that designed all this he'd wring his neck. He said that getting in there to get the oil pan will be the worst headache he's ever had working on a car. The only reason he got the car and might keep it is because new new wife likes it and he bragged that he could "fix" it.


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amazing story!!
wouldn't the chloride in bleach react with aluminum in the engine? and i don't think bleach is a surfactant to help remove greasy sludge. maybe bleach work for him... or a different type of bleach like OxiClean that use hydrogenperoxide?
or he probably got an used motor and swap the engine to impress his new wife.
interesting story!
 
Dumb question: what was the engine doing when it was bought (setting codes, low output power, ___?), and what is it doing better now that it's had this flushing process?

Second dumb question: is it possible that the bleach did nothing, but simply running a few quarts of oil through did?
 
Whatever... As long as he's happy with the wife's new toy.

Me, I'd a put some HDEO in there and two cans of Kreen and given her the keys and say go shopping. Drain it when she got home, changed filter and do it again. After a few such treatments, the sludge will be mostly gone.

But each of us good ol' boys know what we know. And we each do what has worked for us in the past.

The bummer is that Kano Labs (makers of Kreen and Kroil) will no longer ship to the Kalifornia Kollective due to "environmental restrictions"... So now I have to use double doses of BG109, which is not as aggressive
frown.gif
 
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Dunno about the bleach, but running a huge volume of used HDEO through it seems a sound plan, though its not a trick most of us could emulate.

Having sufficient catching capacity underneath might take some ingenuity, (if it was on its wheels without a pit), assuming he didn't just let run it onto his driveway.
 
Originally Posted By: Ducked
Dunno about the bleach, but running a huge volume of used HDEO through it seems a sound plan, though its not a trick most of us could emulate.

Having sufficient catching capacity underneath might take some ingenuity, (if it was on its wheels without a pit), assuming he didn't just let run it onto his driveway.


A 58 quart drain pan was one of the first things I bought for my trucks when I purchased my food distribution business.

You could dump almost 3 5-gal buckets through an engine on top of that.
 
Originally Posted By: BrocLuno
Whatever... As long as he's happy with the wife's new toy.

Me, I'd a put some HDEO in there and two cans of Kreen and given her the keys and say go shopping. Drain it when she got home, changed filter and do it again. After a few such treatments, the sludge will be mostly gone.

But each of us good ol' boys know what we know. And we each do what has worked for us in the past.

The bummer is that Kano Labs (makers of Kreen and Kroil) will no longer ship to the Kalifornia Kollective due to "environmental restrictions"... So now I have to use double doses of BG109, which is not as aggressive
frown.gif



Trip to Arizona or Nevada to stock up?
 
I have successfully revived sludged up engines by pouring a few pints of diesel fuel into the oil pan, letting it idle for a while and drain out the gloop. Then refill with oil and a new filter, and change it all again after 500 miles or so.
I have no reason to doubt the Audi fix will work.

Claud.
 
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