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Best additive in oil to clean sludge? #4793252
06/21/18 02:19 PM
06/21/18 02:19 PM
Joined: Aug 2007
Posts: 21
CA
ffgb Offline OP
ffgb  Offline OP
Joined: Aug 2007
Posts: 21
CA
Is it better to have higher Ca in oil to clean sludge? Or is it better to have higher ester in oil to clean sludge?
What oils have the highest amount of Ca? Mobil Turbo Diesel oil or Schaeffer, etc...???
What oils have the highest amount of ester? Redline or Maxima, etc...???

Thanks

Re: Best additive in oil to clean sludge? [Re: ffgb] #4793278
06/21/18 02:43 PM
06/21/18 02:43 PM
Joined: Oct 2014
Posts: 11,864
Idaho
CT8 Offline
CT8  Offline
Joined: Oct 2014
Posts: 11,864
Idaho
How much sludge is there to clean up?


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: Best additive in oil to clean sludge? [Re: ffgb] #4793284
06/21/18 02:48 PM
06/21/18 02:48 PM
Joined: Jan 2008
Posts: 10,707
OH
SatinSilver Offline
SatinSilver  Offline
Joined: Jan 2008
Posts: 10,707
OH
If you don't want to open up the engine and manually clean it up I would do an engine flush. Pour it in, let it idle for 10-15 mins or whatever the directions state. Do not drive it while the flush is in the engine unless you want to buy a new engine. Let drain out and refill with a cheap conventional oil. Formula Shell at Home Depot for $13/jug is fine. Do about 3 short intervals of 500-1500 miles. Change pcv valve. From there keep using the FS, or PYB etc...

Re: Best additive in oil to clean sludge? [Re: ffgb] #4793341
06/21/18 04:00 PM
06/21/18 04:00 PM
Joined: Feb 2015
Posts: 2,203
Slovenia EU
Kamele0N Offline
Kamele0N  Offline
Joined: Feb 2015
Posts: 2,203
Slovenia EU
Meh....

At next OCI just "substitute" 1liter/quart with whatever ester based oil you can get online/locally....it could be "the cheapest motocycle oil" you can get....


2011 Hyundai i30 1.4 CVVT Shell Helix Ultra 5w40
1997 Toyota Landcruiser KZJ95 3.0 TD Shell Rimula R6M 10w40
Re: Best additive in oil to clean sludge? [Re: ffgb] #4793347
06/21/18 04:09 PM
06/21/18 04:09 PM
Joined: Sep 2015
Posts: 5,873
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline
Joined: Sep 2015
Posts: 5,873
Kalifornia Kollective
Seafoam. 1 oz per quart of crankcase capacity in existing oil. Run it for 20 minutes.

Change oil and filter (go oversized if one will fit). Add full can of BG109 (EPR) to new conventional oil. Drive for ~100 miles. Change oil and filter again.

Keep doing the BG109 thing 100 miles before oil change at 3,000 mile intervals. It'll get clean in a while smile

Use biggest filter that will fit. You are going to put stuff in there ...


Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: Best additive in oil to clean sludge? [Re: ffgb] #4793454
06/21/18 06:02 PM
06/21/18 06:02 PM
Joined: Jul 2017
Posts: 542
Texas (south)
FermeLaPorte Offline
FermeLaPorte  Offline
Joined: Jul 2017
Posts: 542
Texas (south)
Marvel Mystery Oil is penetrating oil. You can add a quart or so, run it for a few days and then drop the oil. Have short Oil Change Intervals and every time add a quart or half-quart of Marvel Mystery Oil till you see some cleaning. SuperTech is the cheapest synthetic oil that you can use.

The other option is flushing the engine with engine flush. Just follow the instruction and then have short intervals with penetrating oil (Marvel Mystery)and a good branded synthetic.

See my signature for the oil I recommend.


Always Mobil 1
2014 1.6L Nissan Versa Sedan, 5 spd, 5k OCI.
2011 3.5L Chevrolet Impala, Automatic, 5k OCI.
Re: Best additive in oil to clean sludge? [Re: ffgb] #4793522
06/21/18 07:14 PM
06/21/18 07:14 PM
Joined: Dec 2013
Posts: 2,088
socal
barkingspider Offline
barkingspider  Offline
Joined: Dec 2013
Posts: 2,088
socal
I would do a 5 min motor medic flush at each OCI until u are satisfied. I would do no more than 3k mile OCIs


06 Cadillac Escalade Ext
17 Cadillac ATS (wife)
05 Toyota Camry (daughter)
11 GMC Canyon off-road (daily)
Re: Best additive in oil to clean sludge? [Re: ffgb] #4793547
06/21/18 07:37 PM
06/21/18 07:37 PM
Joined: Mar 2016
Posts: 996
MT
jongies3 Offline
jongies3  Offline
Joined: Mar 2016
Posts: 996
MT
I don't personally recommend engine flushes, you don't want something big to break loose and clog an oil passage, leading to a bigger problem later on. Any HDEO, conventional or synthetic at recommended intervals will do wonders. I'm especially a fan of the cleaning ability of Rotella T6 synthetic, it's also very cheap and easy to find anywhere yet a really stout brew. Better to clean it up over time than all at once is the way I see it!


2004 Toyota Tacoma 3.4 V6: Mobil 1 AFE 0W-30, FRAM TG-3600 filter
1969 Mustang Mach 1 5.8 V8: PYB 10W-30 Napa Gold 1515 filter
1997 Ford F-250 HD 7.3 Powerstroke V8: T6 5W-40 FRAM PH-3786 filter
Re: Best additive in oil to clean sludge? [Re: ffgb] #4793574
06/21/18 07:56 PM
06/21/18 07:56 PM
Joined: Nov 2008
Posts: 12,574
NH
supton Offline
supton  Offline
Joined: Nov 2008
Posts: 12,574
NH
What is the sludge doing? I'm wondering if it's best to leave sleeping dogs lie. Just change the oil often. Maybe frequent changes will slowly pull out stuff. I pulled the valvecover on my car a year ago, and then last month, and I *think* there was a bit less varnish. Think. Maybe. Perhaps...

I have no proof other than "it feels good" but I suspect that changing oil brands on every change might do something to loosen up sludge. Let the different additives and chemistry attack in their different ways. Probably a trivial effect but what the heck, chase the sales.

I forget if conventional is better at cleaning than synthetic. Something about being more polar.

But I'd think that once oil was getting changed often enough, that sludge and varnish would be arrested in its development?


2011 Toyota Camry, base, 2.5L/6MT, 163k, hers
2010 Toyota Tundra DC, 4.6L/6AT, 144k, ours
1999 Toyota Camry LE, 2.2L/4AT, 190k, his
Re: Best additive in oil to clean sludge? [Re: ffgb] #4793598
06/21/18 08:26 PM
06/21/18 08:26 PM
Joined: May 2012
Posts: 1,377
The land of USA-made Subies!
SubieRubyRoo Online happy
SubieRubyRoo  Online Happy
Joined: May 2012
Posts: 1,377
The land of USA-made Subies!
A true solvent or a boutique oil that specifically references carbon removal like Valvoline Premium Blue Restore is the only thing that is really going to perform "cleaning". Several of the oil formulators here have reinforced that plain detergents do not actually "clean" so much other than maybe washing away some of the goop.

Kreen is probably one of the more highly regarded solvents on the board, Trav had a great 60+ page thread on it if you search. I used Kreen in my Odyssey and it took off a good bit but not all of the varnish under the valvecover. I'm sure a couple more rounds of it will get it looking as good as new, not that varnish alone really hurts anything.

MMO is tried and true but takes much longer, then you have Gumout AIO, Seafoam, and a couple others (Amsoil, Motor Mechanic, etc.)

Re: Best additive in oil to clean sludge? [Re: ffgb] #4793644
06/21/18 09:26 PM
06/21/18 09:26 PM
Joined: Oct 2010
Posts: 4,922
Midwest
volk06 Offline
volk06  Offline
Joined: Oct 2010
Posts: 4,922
Midwest
You want a high Magnesium oil. Thats why many people recommend HDEO for clean ups as they usually have a good does of magnesium, however, many PCMO are now using magnesium due to SN+ and D1G2.


2011 F-150 Ecoboost
2012 Focus S
2001 Taurus
Re: Best additive in oil to clean sludge? [Re: ffgb] #4793804
06/22/18 03:52 AM
06/22/18 03:52 AM
Joined: Oct 2012
Posts: 4,642
Taiwan
Ducked Offline
Ducked  Offline
Joined: Oct 2012
Posts: 4,642
Taiwan
For immediate results Under the rocker cover, use a spoon or a fat drinking straw.

In this case, synthetic is best, since polythene is sufficiently flexible to conform to the surface.

Re: Best additive in oil to clean sludge? [Re: ffgb] #4793807
06/22/18 03:56 AM
06/22/18 03:56 AM
Joined: Dec 2012
Posts: 556
Cave City KY
jakewells Offline
jakewells  Offline
Joined: Dec 2012
Posts: 556
Cave City KY
substitute one quart of oil with a quart of diesel and run it for 20 minutes before a oil change. It always worked for me in a dirty engine.


1994 Ford F150 302 4R70
Chevron Delo SAE 30 CF/SL Fram XG8A

1978 Chevy Nova 250 I6 Borg Warner T5
Rotella 10W40 Fram XG5

Re: Best additive in oil to clean sludge? [Re: ffgb] #4793831
06/22/18 05:22 AM
06/22/18 05:22 AM
Joined: Mar 2012
Posts: 200
Southern NY
MoneyJohn Offline
MoneyJohn  Offline
Joined: Mar 2012
Posts: 200
Southern NY
I always wondered if you add diesel or kerosene in the crankcase, how would you dispose of that oil? Every time I drop off my used oil at Autozone, they ask me, if I have used any additive. So I even stopped adding Marvel Mystery oil (I noticed, it helped slightly.)

Now I have been using 2:1 Synthetic blend and synthetic oil and the car drives far better. Before next oil change, I plan to add Kano Labs' Kreen, idle for 20 min, drain and fill up with synthetic only.

I didn't want to open the crankcase cover to check for the sludge so I decided to go this way. Trav was esp. helpful on the thread I posted a while ago.


2015 Subaru Forester 2.5i Premium w/ EyeSight
2006 Nissan Sentra 1.8S Special Edition
Re: Best additive in oil to clean sludge? [Re: ffgb] #4793914
06/22/18 08:08 AM
06/22/18 08:08 AM
Joined: Dec 2005
Posts: 9,909
Upper Midwest
kschachn Offline
kschachn  Offline
Joined: Dec 2005
Posts: 9,909
Upper Midwest
And yet the first response on here by CT8 asking how much sludge there is hasn't been addressed nor answered by the OP.

One wonders if there is even a problem to begin with as is the case with most of these types of questions.


1994 BMW 530i, 229K
1996 Honda Accord, 263K
1999 Toyota Sienna, 402K
2000 Toyota ECHO, 272K
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