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Piston Soak: BMW #82140428376 vs AcDelco X66p #5233065 10/07/19 02:41 PM
Joined: Aug 2004
Posts: 21,162
The Critic Offline OP
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If the Valvoline Premium Blue Restore does not work, I am interested in performing a piston soak on the spouse's Accord. AcDelco X66p was supposed to be very good for this purpose but the product is discontinued.

Rumor is that BMW sells a very similar product - it is coincidentally sold in the same style bottle and happens to be the same color:

https://www.eeuroparts.com/Parts/46712/Fuel-Injection-Cleaner-Concentrate-82140428376/

Does anyone know if the two products are similar?

Last edited by The Critic; 10/07/19 02:42 PM.

2011 Toyota Prius 1.8L - 198K - Pennzoil Platinum 0W-20
2007 Honda Accord 2.4L - 139K - Valvoline Premium Blue Restore 10W-30
Re: Piston Soak: BMW #82140428376 vs AcDelco X66p [Re: The Critic] #5233074 10/07/19 02:56 PM
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krismoriah72 Offline
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This is the new stuff

https://www.amazon.com/ACDelco-10-3015-Engine-Injector-Cleaner/dp/B07CZ17LK3


Here is a review


As soon as I poured this stuff into the spark plug holes, the clear liquid turned black, and the drips on spark threads turned the black carbon into shiny metal. It literally melted the carbon. I sucked out the liquid, and the carbon debris clogged my sucking tube. I can't believe how much crud has come out from the pistons. I followed the soak with MMO to flush out the carbon debris until the liquid turned to clear red, and cranked the engine (with a towel covering the holes) to blast the carbon pieces out. My car has stopped burning oil. A miracle!

Re: Piston Soak: BMW #82140428376 vs AcDelco X66p [Re: The Critic] #5233104 10/07/19 03:45 PM
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Brybo86 Offline
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That review is unreal.

I also tried a piston soak in my 2008 accord using seafoam, MMO, I had a dry plug #1 I think after cranking

After sitting about 2 days I did manage to get the 1st hole to be wet.

If this works for you I may try it.


Last edited by Brybo86; 10/07/19 03:54 PM.

12 Honda Odyssey 112k
09 Kymco Super8
08 Honda Accord 2.4L 164k
01 Kymco People 50
95 Yamaha Jog
Re: Piston Soak: BMW #82140428376 vs AcDelco X66p [Re: The Critic] #5233138 10/07/19 04:18 PM
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nthach Offline
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This stuff is the same as ACDelco Top Engine Cleaner/Motorcraft Carburetor Tune-Up Cleaner/Mopar Combustion Chamber Cleaner, but in spray form.

https://www.westmarine.com/buy/valvtect--marine-motor-de-carb-13-oz--548107?recordNum=4

Re: Piston Soak: BMW #82140428376 vs AcDelco X66p [Re: The Critic] #5233175 10/07/19 05:03 PM
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krismoriah72 Offline
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And theres CRC

[Linked Image from crcindustries.com]

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