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post #1 of 14 (permalink) Old 09-28-2003, 04:20 PM Thread Starter
 
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Flushing Engine

I have a 99 Intrepid with 53k miles. I am going to switch to Amsoil 0w-30 and wondered if anyone has used the Amsoil Engine Flush? I know that using a synth will clean the engine over time, and that I should change the synth at the regular intervals the first few times. The thing is I don't want to spend the big $$ back to back for the oil changes.

Input from past experiences would be great.
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post #2 of 14 (permalink) Old 09-28-2003, 04:26 PM
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just drain the pan....put in new oil...run it for a minute...shut it off....drain the pan again and change the filter.
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post #3 of 14 (permalink) Old 09-28-2003, 04:31 PM
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Sounds like a pretty thin oil. Are you sure you want to run something the viscosity of cooking oil?
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post #4 of 14 (permalink) Old 09-28-2003, 04:41 PM
 
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Quote:
Originally posted by jfsram
Sounds like a pretty thin oil. Are you sure you want to run something the viscosity of cooking oil?
Only when its cold. It only gets as thin as every other 30W oil when its hot.
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post #5 of 14 (permalink) Old 09-28-2003, 06:00 PM Thread Starter
 
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Right the "w" stands for weather. It is the rating at which the oil will flow properly. This synth has a borderline pumping temperature of -40F. Since it only gets as cold as 40F here, shouldn't be a problem.

here are the specs: http://www.amsoil.com/products/tso.html
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post #6 of 14 (permalink) Old 09-29-2003, 08:16 PM
 
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I've heard good things about the 0W-30. When the engine is cold, the oil flows like a zero weight, and gets right up to the heads.
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post #7 of 14 (permalink) Old 09-29-2003, 11:13 PM
 
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Quote:
wondered if anyone has used the Amsoil Engine Flush?
I did an engine flush on my old 1st gen trep. I used a flush that smelled like varsal or something. What a MISTAKE! it took off the coating on the inside of my oilpan and the oil pump tried to suck it up. I lost all oil pressure and lost my engine. When I droped the oil pan there was that coating stuck to the intake screen. I heard that they don't sell that type of flush in the U.S. anymore, but I've never checked. If they do, I wouldn't use it again.
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post #8 of 14 (permalink) Old 09-30-2003, 12:23 PM
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Quote:
Originally posted by NKA'sSXT
I did an engine flush on my old 1st gen trep. I used a flush that smelled like varsal or something. What a MISTAKE! it took off the coating on the inside of my oilpan and the oil pump tried to suck it up. I lost all oil pressure and lost my engine. When I droped the oil pan there was that coating stuck to the intake screen. I heard that they don't sell that type of flush in the U.S. anymore, but I've never checked. If they do, I wouldn't use it again.
I've heared of that happening too, so I do one of 2 things.

1. use it according to the directions (no longer than 5-15 minutes in the engine.) That won't take all the varnish/sludge off the walls of the pan/engine, but it will loosen a lot of it. You want it to remove a little bit at a time, not all at once.

2. Use it and let it sit over night. This will allow the engine flush to break down the varnish/sludge that is in the pan/engine.

My rule of thumb is: If you use engine flush, from when the car is new, continue to use it. If you've never used engine flush, don't use it.

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post #9 of 14 (permalink) Old 09-30-2003, 01:14 PM
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Engine flushes are a waste of money...just switch to synthetic and continue with regular changes.

Someone had posted a good link with the truth about engine flushes...the conclusion was don't bother.
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post #10 of 14 (permalink) Old 09-30-2003, 01:34 PM
 
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Here's the link to the article:

http://www.motorminute.com/

Here's the link to the thread:

https://www.dodgeintrepid.net/forums/...threadid=26003
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post #11 of 14 (permalink) Old 09-30-2003, 04:16 PM
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Ok, I just read the artical. Good article.

I didn't even know that there was a engine oil flush unit out there.

Anyway, I think what pitoman is talking about is the fluid that you put in your engine that thins out the oil and breaks down the varnish.

I might do a double oil change next time using regular dino oil for the first oil change and Mobile1 Synthetic 0W30 for the final oil change. Or, I just might let it go. I guess I'll see when I do my next oil change.

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post #12 of 14 (permalink) Old 09-30-2003, 04:51 PM
 
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I realize he was referring to a different process, but I can't believe that the results will be that different. You're still loosening debris that could plug an oil line or the pickup screen which to me is the biggest fear in doing it...
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post #13 of 14 (permalink) Old 09-30-2003, 06:14 PM
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Quote:
Originally posted by dbaudiopro
I realize he was referring to a different process, but I can't believe that the results will be that different. You're still loosening debris that could plug an oil line or the pickup screen which to me is the biggest fear in doing it...
I though you were refering to cost $100.00 v.s. the cost of the liquid ($2-$15 depending) which isn't a lot at all.

I too have had concerns about the loose debris but so far have not had a problem. I don't use it all the time and when I do use it, i let it sit over night and drain the engine in the morning.

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post #14 of 14 (permalink) Old 09-30-2003, 06:44 PM
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The easy answer is: YOU SHOULD NEVER DO AN ENGINE FLUSH NO MATTER WHAT METHOD YOU PLAN ON USING OR WHATEVER THE COST. The best thing you can do is just regularly change your oil...every 3-5K. The engine needs nothing more than regular oil and filter changes. If you flush you are wasting money and likely doing more damage than good.

Only reason you would ever do an oil flush is if your oil was contaminated with something like sugar/brake fluid/etc...
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