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#2148065 - 01/23/11 09:03 AM UPDATE: Auto rx "after" pics 93 Chevy pickup
cronk Offline


Registered: 01/06/09
Posts: 1128
Loc: Watertown, New York
I finally got some garage time and pulled a valve cover. I did a 3000 mile clean phase, this is about 2000 miles into the rinse.









As you can see there is still a lot of cleaning to go, but I would say the Auto RX cleaned at least 1/3 the sludge. It seams to have worked best on the lower portion of the head where there is the most oil flow. In the last pic, you can actually see some areas of clean bare metal.
All and all, I am happy with the results.
At this point, I am going to do some 3000 mile runs with Valvoline synthetic, I may do another Auto RX run in the summer.


Edited by wwillson (01/23/11 09:51 AM)
Edit Reason: set pictures as "center"

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#2148081 - 01/23/11 09:15 AM Re: UPDATE: Auto rx "after" pics 93 Chevy pickup [Re: cronk]
sciphi Offline


Registered: 03/24/07
Posts: 10008
Loc: Upstate NY
Thanks for sharing!

The stuff can work, given the correct application.
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#2148086 - 01/23/11 09:26 AM Re: UPDATE: Auto rx "after" pics 93 Chevy pickup [Re: cronk]
gathermewool Offline


Registered: 01/09/09
Posts: 5336
Loc: New England
Sorry if I missed it, but did you post pics and the history in another thread? Would you mind posting up the link?
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#2148087 - 01/23/11 09:27 AM Re: UPDATE: Auto rx "after" pics 93 Chevy pickup [Re: cronk]
JHZR2 Offline



Registered: 12/14/02
Posts: 40429
Loc: New Jersey
Are there before pics?

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#2148099 - 01/23/11 09:35 AM Re: UPDATE: Auto rx "after" pics 93 Chevy pickup [Re: cronk]
electrolover Offline


Registered: 12/04/10
Posts: 3192
Loc: TEXAS
SHOOT GIVE PYB A TRY! lets see that 40 percent sludge removal.


thanx for the pics.

i would love to see how kreen worked in that engine
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#2148127 - 01/23/11 09:55 AM Re: UPDATE: Auto rx "after" pics 93 Chevy pickup [Re: cronk]
cronk Offline


Registered: 01/06/09
Posts: 1128
Loc: Watertown, New York
Here is a link the my original post with before pics.

http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=1877524#Post1877524

I wouldn't even try Kreen in this engine, if all this crud broke loose to quickly, the oil pump pickup screen would be plugged for sure. I'm going for a more gradual approach.
I will post pics later of the oil filter when I cut it open.
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#2148129 - 01/23/11 09:59 AM Re: UPDATE: Auto rx "after" pics 93 Chevy pickup [Re: cronk]
electrolover Offline


Registered: 12/04/10
Posts: 3192
Loc: TEXAS
it doesnt seem to have done much. i was expecting more
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#2148138 - 01/23/11 10:09 AM Re: UPDATE: Auto rx "after" pics 93 Chevy pickup [Re: cronk]
spasm3 Offline


Registered: 05/30/10
Posts: 7725
Loc: North Carolina
I would do some mmo with frequent filter changes, use a decent yet less expensive filter and change it at 500 miles, again at 1500 and 3000 with the mmo. You are going to need several ocis with mmo to clean this up. I have seen sludge much worse than this, just go slow!
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#2148143 - 01/23/11 10:15 AM Re: UPDATE: Auto rx "after" pics 93 Chevy pickup [Re: cronk]
hate2work Offline


Registered: 09/04/08
Posts: 4617
Loc: Western Washington

Could you post the link to the pics of the filter used with the 500 mile MMO run? From the sounds of what I read in the other thread it did some cleaning.
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#2148166 - 01/23/11 10:35 AM Re: UPDATE: Auto rx "after" pics 93 Chevy pickup [Re: cronk]
demarpaint Offline


Registered: 07/03/05
Posts: 28321
Loc: NY
I'd run cheap dino and a qt of MMO for 3000 miles and hit it with the knockout punch. It should clean up nicely!
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#2148173 - 01/23/11 10:38 AM Re: UPDATE: Auto rx "after" pics 93 Chevy pickup [Re: cronk]
ChiTDI Offline


Registered: 12/19/03
Posts: 2187
Loc: Chicago IL
Good choice on the slow approach, and a very good job framing the pictures for accurate comparison in before/after.
Hope the cleaning goes well for you, thanks fore posting this.

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#2148203 - 01/23/11 11:05 AM Re: UPDATE: Auto rx "after" pics 93 Chevy pickup [Re: cronk]
cronk Offline


Registered: 01/06/09
Posts: 1128
Loc: Watertown, New York
I wish I had taken a close up of the "before" like the last pic in the "after". It is hard to tell from the pics but the layer of crud is much less thick in the after photos. You can also see some bare metal on the rocker arms and valve spring retainers.
There was seriously no bare metal to be seen in the before shots.
Another thing I noticed, the crud was very hard, almost baked on in the before pics, now it seems softer and is easier to scrape off. My hope is that good oil and 3k oci will help clean more of this now that is is softened.
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#2148207 - 01/23/11 11:07 AM Re: UPDATE: Auto rx "after" pics 93 Chevy pickup [Re: cronk]
chubbs1 Offline


Registered: 06/09/10
Posts: 4574
Loc: Merritt Island FL, USA
I was having a hard time telling between the pre-clean pics vs the post-clean pics. I would definitely try a different approach. I really don't think Kreen in the proper dosage would be a problem. Either Kreen it MMO or SeaFoam it. With some highway driving in the mix. I wouldn't spend any more $$ on ARx. Or put Pennzoil to the test and see if they clean as claimed. Also a run of an ester based oil may help too (pretty much what ARx is) it would just be more concentrated. just a thought

BTW thank you for posting these pics. I know it is really cool to see s project like yours in action!


Edited by chubbs1 (01/23/11 11:13 AM)
Edit Reason: Addendum
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#2148220 - 01/23/11 11:18 AM Re: UPDATE: Auto rx "after" pics 93 Chevy pickup [Re: cronk]
hate2work Offline


Registered: 09/04/08
Posts: 4617
Loc: Western Washington

I agree with Chubbs, I wouldn't spend any more money on arx when you can buy 4 or 5 bottles of MMO for the same price. From reading your first thread it sounded like the MMO was working, you said the filter was dirty after just 500 miles.

Why did you stop using MMO and go to arx? Just curious, not hating smile
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#2148223 - 01/23/11 11:22 AM Re: UPDATE: Auto rx "after" pics 93 Chevy pickup [Re: cronk]
demarpaint Offline


Registered: 07/03/05
Posts: 28321
Loc: NY
I think a qt of MMO and another 3000 mile run, and he's GTG. Another plus for MMO is the easier cold starts, especially in Watertown, NY.
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