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Piston Clean-Up #5464053 06/27/20 11:28 AM
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AJB0009 Offline OP
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I'm wondering if you can chime in and help me over-think this. Why? Because that is what we do here on BITOG, right?
My daughter's 2013 Corolla has about 196k miles on it. She bought it from a friend of mine who is a regional sales guy. He states that he always had the oil changed by a guy he knows at a Valvoline Quick Lube place and used full syn oil on 6k OCI.
I changed oil on it and put in Valvoline FS HM. That was about 6k miles ago and it has burned about 2.5 quarts in that time. I changed out the original spark plugs, they actually looked pretty good given the miles on them; not oily. I changed the PCV valve (original wasn't bad either).
I've done a little research and it seems there is a known issue. The pistons have four holes drilled in the oil ring groove. Those holes get clogged up with gook, so the oil can't drain back down into the crankcase, so it is forced up past the compression rings with nowhere else to go. The fix is to remove the pistons, clean out the grooves and holes, drill two additional holes and put new rings on.
I am NOT going to do that.
I was thinking of switching it to Castrol GTX Ultraclean 5W30 and adding a 1/2 quart of MMO.
Then about a week ago I was reading the thread here "M1 vs PUP observations". Excellent thread BTW. That got me (over)thinking, maybe I should run PUP with their piston cleaning claims.
But, PUP would be about $8 more a jug vs. the GTX.
I'd love to hear everyone's thoughts as they over-think this with me.


13 Toyota Corolla S 1.8; Valvoline FS HM 0W20, OEM filter
12 Ford Fusion 2.5; Castrol EDGE 5W30, CQ Blue 85348
06 Toyota Tacoma 2.7; M1 HM 5W30, Wix XP
04 Ford Explorer 4.0; MC SB 5W30, MC FL820-S
Re: Piston Clean-Up [Re: AJB0009] #5464056 06/27/20 11:32 AM
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2015_PSD Offline
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Do a Berryman B-12 Chemtool piston soak overnight (fill the cylinders with it) and it will break down the carbon in the grooves. Drain the oil, then do a couple of short OCIs. You should see an improvement in the oil consumption and you may have to repeat it in a few thousand miles to clean all of the carbon.


2019 o)|||||(o Rubicon Wrangler Unlimited 3.6L V6 [Kendall GT-1 Max + Ultra]
2018 Mercedes Benz C300 2.0L Turbo [Pennzoil Platinum + Mann filter]
Re: Piston Clean-Up [Re: 2015_PSD] #5464064 06/27/20 11:50 AM
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rollinpete Offline
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Originally Posted by 2015_PSD
Do a Berryman B-12 Chemtool piston soak overnight (fill the cylinders with it) and it will break down the carbon in the grooves. Drain the oil, then do a couple of short OCIs. You should see an improvement in the oil consumption and you may have to repeat it in a few thousand miles to clean all of the carbon.


That's a pretty good idea.
I would just add make sure you leave the plugs out and turn it over a few times before starting the engine.


Pete.
97 Ford Expl.Sport 4.0 ohv 4wd 5spd 190k
SRGT 5w30
Whip City Wrencher
Currently under the influence of oil shocked2

Re: Piston Clean-Up [Re: AJB0009] #5464065 06/27/20 11:53 AM
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philipp10 Offline
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I have the same issue with my 2008 RAV4, it burns quite a bit of oil. I have come to terms with it that given the age of the vehicle and it's worth on the market, that it's much easier to just feed it oil as needed. Oil is cheap. A 2013 Corolla with 196k miles, probably has a value of no more than $6k. If I were you, I too would just add oil as necessary and let it go.

Concerning the Berrymans soak, I don't know much about how well it works. What are the chances it can break up the carbon in the ring grooves well enough to clear out these holes.

Last edited by philipp10; 06/27/20 11:56 AM.
Re: Piston Clean-Up [Re: AJB0009] #5464070 06/27/20 11:56 AM
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ThirdeYe Offline
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I wasn't aware of the 2013s having oil burning issues, but I know Toyota has had ring issues for a very long time in some of their 4-cylinder engines in the 90s through the late 2000s. My Accord burns about a quart every 1k due to the oil control rings getting gummed up, so I just top it off and it keeps going and going. I've tried PUP and other oils that advertise cleaning to no avail.


07 Honda Accord - 627k - Pennzoil Ultra Platinum 5W-20/Wix 57356
98 Camaro Z28 (Bright Purple Metallic, 1 of 104) - 127k - Mobil 1 HM 5W-30/Fram Pro Synthetic XG3506
Re: Piston Clean-Up [Re: AJB0009] #5464083 06/27/20 12:11 PM
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Toh1 Offline
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I would suggest to try Rislone engine treatment 100qr or high mileage version.it will clean your engine.

Re: Piston Clean-Up [Re: AJB0009] #5464085 06/27/20 12:13 PM
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Cujet Offline
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I just used Berrymans B12 to de-carbon some pistons. It was cheap, at about $4 per can, and effective. However, the little bit I spilled did strip the epoxy paint off the hangar floor. Good stuff. Nothing else comes close.

Make sure to get the stuff in the cans with the screw on top. The spray cans are not the same product. You will probably need 2 cans.

Other suggestions:

1) Move pistons to mid stroke! Then put about 8 ounces in each cylinder.

2) Leave the oil drain plug out, as B12 will find it's way past the rings and into the oil. The stuff is like paint stripper and will destroy gaskets. I'd not take the risk of circulating that stuff in your engine.

3) Make sure the cylinders are empty before cranking it up (they probably will be) . If you crank it and there is B12 in the cylinders, and it sprays all over, it WILL strip your paint.

4) Before putting synthetic oil back in, Flush the oil pan by rapidly pouring a half gallon of gas into the oil fill and letting it drain out of the pan.

Last edited by Cujet; 06/27/20 12:26 PM.

People who count on their fingers should maintain a discreet silence.
Re: Piston Clean-Up [Re: AJB0009] #5464103 06/27/20 12:28 PM
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Cujet Offline
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No on the MMO and GTX. Use regular M1 5W or 10W-30.


People who count on their fingers should maintain a discreet silence.
Re: Piston Clean-Up [Re: Cujet] #5464171 06/27/20 01:44 PM
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Trav Offline
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Originally Posted by Cujet
I just used Berrymans B12 to de-carbon some pistons. It was cheap, at about $4 per can, and effective. However, the little bit I spilled did strip the epoxy paint off the hangar floor. Good stuff. Nothing else comes close.

Make sure to get the stuff in the cans with the screw on top. The spray cans are not the same product. You will probably need 2 cans.

Other suggestions:

1) Move pistons to mid stroke! Then put about 8 ounces in each cylinder.

2) Leave the oil drain plug out, as B12 will find it's way past the rings and into the oil. The stuff is like paint stripper and will destroy gaskets. I'd not take the risk of circulating that stuff in your engine.

3) Make sure the cylinders are empty before cranking it up (they probably will be) . If you crank it and there is B12 in the cylinders, and it sprays all over, it WILL strip your paint.

4) Before putting synthetic oil back in, Flush the oil pan by rapidly pouring a half gallon of gas into the oil fill and letting it drain out of the pan.


+1 on all that but I would probably flush the end out with Kerosene not gas. The small amount left in the bottom of the pan is harmless.


ASE L1, Master. Deutsch Meisterbrief.
Re: Piston Clean-Up [Re: AJB0009] #5464199 06/27/20 02:37 PM
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Propflux01 Offline
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What about this?

https://www.speediagnostix.com/new-oil-analysis/valvoline-premium-blue#:~:text=Valvoline%20Premium%20Blue%20restore%20is,lands%20and%20other%20engine%20components.

Pricey, but for a one time use....

Valvoline+Premium+Blue.jpg

2014 Hyundai Elantra
2014 Hyundai Elantra GT
Re: Piston Clean-Up [Re: AJB0009] #5464217 06/27/20 02:54 PM
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Zaedock Offline
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Another vote for Berryman B12. Been using it for years, especially in my small equipment to help stop Ethanol goop.
Always wondered why it's only $4 / can as it works very well.

Agree with Trav on the kerosene too.


2019 Escape EB AWD/2016 KIA Optima SXL 2.0L Turbo/2012 F150 Ex-cab 5.0L
1992 YJ "The Heep"/2015 Chrysler 200 Limited
1975 Ford Bronco/1959 Willys CJ5/Tube Rock crawler
Re: Piston Clean-Up [Re: AJB0009] #5464238 06/27/20 03:20 PM
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Jetsfan421 Offline
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If you go the berrymans piston route after the soak and drain put a couple drops of oil in the spark plug holes. That stuff strips the oil from the cylinder walls and you get a dry start. Let it soak for about an hour up to overnight.

Re: Piston Clean-Up [Re: AJB0009] #5464240 06/27/20 03:23 PM
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oldhp Offline
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Don't forget the "Italian Tune up" when done with soaking and changing the oil.


"None of us are getting out here alive...drink that beer...eat that pizza...drive that Hot Rod"
"When others cut you down, remember where they came from."
"I don't run...........I just quietly wait"
Re: Piston Clean-Up [Re: AJB0009] #5464256 06/27/20 03:36 PM
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ARB1977 Offline
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Amsoil power foam did an awesome job on my lawnmower. Pulled the plug, stood it vertical. Sprayed the cylinder and let it sit over night.


2015 Tacoma 4.0L 60K (as of 02/23/18)
AMSOIL SS 0W30 / Toyota filter

2018 CRV 1.5L (as of 05/11/18)
Factory fill / Honda filter
Re: Piston Clean-Up [Re: AJB0009] #5464276 06/27/20 04:03 PM
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Merek Offline
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As stated Honda has had issues with their oil control rings and the typical fix is by doing a piston soak overnight using Seafoam or MMO and then you pull the fuse for the fuel pump so you don't keep adding fuel into the cylinders and crank it over a few times to clear them out. If it's really bad then you'll need to do this multiple times and for best results you will need to attack it from both angles by also adding it into your crankcase to help clean from the bottom.

I have used MMO on my Civic that's an oil burner to soak the pistons, I can't say whether that's helped or not as I've fixed some leaks along the way too. I plan on doing another piston soak when the next oil change is due, I'm also currently using Valvoline FS HM which seems to be highly regarded on here.

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