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#4733827 - 04/21/18 07:39 AM Re: Best detergent oil for light sludge in Toyota 3.4 [Re: DPRespecki]
Linctex Offline


Registered: 12/31/16
Posts: 6189
Loc: Waco, TX
Originally Posted By: DPRespecki
Thinking of doing 1-3 short oil change intervals to clean it up a bit before I do a lot of long driving...


That's kind of backwards...

Long drives is what will clean that engine up!
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"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

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#4733834 - 04/21/18 07:47 AM Re: Best detergent oil for light sludge in Toyota 3.4 [Re: DPRespecki]
alarmguy Offline


Registered: 07/10/12
Posts: 2237
Loc: South Carolina
Originally Posted By: DPRespecki
Hi... Just acquired a new to me 2002 Tacoma with the v6 3.4 It has some light sludge and was wondering what current oils are considered best for good detergent - cleaning attributes? Thinking of doing 1-3 short oil change intervals to clean it up a bit before I do a lot of long driving...


ANY brand (Super Tech, Delo, Mobile, Valvoline, Rotella, ect) HDEO/Diesel rated oil that cost anywhere from $12 to $20 for a 4 quart jug that also carries the API SM or SN required by your motor would be perfect for what you want.

Actually I am surprised I was the first to mention this, there is no better oil for what you want, not only that, its great oil!


Edited by alarmguy (04/21/18 07:49 AM)
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#4735002 - 04/22/18 07:52 AM Re: Best detergent oil for light sludge in Toyota 3.4 [Re: DPRespecki]
mjk Offline


Registered: 02/15/11
Posts: 1246
Loc: Wishin' I was in Wi
So, I am putting my flame suit on here.... be gentle.

What about a couple of ounces of B12 in the crankcase. Idle for about 10 minutes, then drain.

I thought I read once, that 1 oz per quart of oil might do something...

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#4735042 - 04/22/18 08:23 AM Re: Best detergent oil for light sludge in Toyota 3.4 [Re: mjk]
4WD Offline


Registered: 09/21/10
Posts: 6880
Loc: Texas
What does it say on the container?

Conventional HDEO’s like Delvac have a NOACK >/= T6 and are very economical …
(Group II+)

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#4735113 - 04/22/18 09:35 AM Re: Best detergent oil for light sludge in Toyota 3.4 [Re: DPRespecki]
CT8 Offline


Registered: 10/09/14
Posts: 11480
Loc: Idaho
There isn't much if any difference in the major brands of oils.
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#4746264 - 05/03/18 12:27 AM Re: Best detergent oil for light sludge in Toyota 3.4 [Re: DPRespecki]
xtell Offline


Registered: 12/13/06
Posts: 525
Loc: ohio
I've run PP 5W-30 or Mobil-1 5w-30 in my 2008 Tacoma with the 3.4. I bought it new and with 87,000+ miles on it, under the valve covers, no varnish and no sludge. Board members and Pennzoil tout the cleaning ability of Pennzoil Synthetic Oils. Try a few changes with Pennzoil.

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#4746388 - 05/03/18 07:38 AM Re: Best detergent oil for light sludge in Toyota 3.4 [Re: CT8]
JohnnyJohnson Online   content


Registered: 10/22/09
Posts: 2991
Loc: Wet side WA
Originally Posted By: CT8
There isn't much if any difference in the major brands of oils.


LOL the main difference is between the ears of people that thinks there's a difference.
_________________________
2004 Corolla 123636
Out: VML 5w-30 TG4967 OCI 5007 Miles
In: Castrol EDGE EP 5W-30 Bosch 3311 122537 7-18-18
2006 Duramax 74202
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 74705 4-22-18

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#4746409 - 05/03/18 08:11 AM Re: Best detergent oil for light sludge in Toyota 3.4 [Re: DPRespecki]
kschachn Offline


Registered: 12/26/05
Posts: 9654
Loc: Upper Midwest
And here we go again "cleaning up" and engine that doesn't have a confirmed problem. The OP has been asked about it but hasn't answered.
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1994 BMW 530i, 228K
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1999 Toyota Sienna, 398K
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#4746493 - 05/03/18 09:20 AM Re: Best detergent oil for light sludge in Toyota 3.4 [Re: DPRespecki]
digger327 Offline


Registered: 11/02/17
Posts: 13
Loc: Colorado
Ok, from experience I know Synthetics do and excellent job of cleaning engines. In 90s bought a 79 Jeep with sludged 258 I6 engine. Installed a Oberg racing filter with removable cleanable mesh filter(why because) that lit a light on Dash when Bypass opened. Put Mobil 1 5W30 in, first day bypass light came on. Cleaned filter, Second day filter light comes on, clean filter. 4th day light comes on, clean filter etc. After that time to bypass filter light coming on doubled. Took a month and half before bypass light stopped coming on. Changed oil with more Mobile 1. Light never came on again. After taking off valve cover to check valve lash, it was amazing how clean the engine was, still varnish but nothing like the caked on stuff before. It takes time but synthetic oil works

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#4754693 - 05/12/18 12:33 AM Re: Best detergent oil for light sludge in Toyota 3.4 [Re: DPRespecki]
huntsonora Offline


Registered: 07/23/09
Posts: 65
Loc: Colorado
Im sure liking the new Rotella T6 5w30 Multi Car oil in my Toyota’s. Strong enough for a diesel and the right weight for the 3.4. I’ve run Rotella in a number of vehicles and everything stays clean

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#4756268 - 05/13/18 08:14 PM Re: Best detergent oil for light sludge in Toyota 3.4 [Re: DPRespecki]
jongies3 Offline


Registered: 03/11/16
Posts: 906
Loc: MT
Originally Posted By: DPRespecki
Hi... Just acquired a new to me 2002 Tacoma with the v6 3.4 It has some light sludge and was wondering what current oils are considered best for good detergent - cleaning attributes? Thinking of doing 1-3 short oil change intervals to clean it up a bit before I do a lot of long driving...

I have a lot of experience with this engine and it's not picky. Run a quality name brand synthetic at regular 5k intervals and it'll do great, there's no need to shorten the interval any. She's real easy on oil being a non-interface timing belt design, hardly shears the oil out of grade. Mine seems to like Mobil 1 and Pennzoil Platinum or Ultra best of all the types I've tried.
_________________________
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

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#4756271 - 05/13/18 08:16 PM Re: Best detergent oil for light sludge in Toyota 3.4 [Re: xtell]
jongies3 Offline


Registered: 03/11/16
Posts: 906
Loc: MT
Originally Posted By: xtell
I've run PP 5W-30 or Mobil-1 5w-30 in my 2008 Tacoma with the 3.4. I bought it new and with 87,000+ miles on it, under the valve covers, no varnish and no sludge. Board members and Pennzoil tout the cleaning ability of Pennzoil Synthetic Oils. Try a few changes with Pennzoil.

You don't have a 3.4, it hasn't been in production since 2004, either a 2.7 four cylinder or 4.0 V6 is what your rig has. Just clarifying! wink
_________________________
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

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#4758495 - 05/16/18 07:37 AM Re: Best detergent oil for light sludge in Toyota 3.4 [Re: DPRespecki]
Gebo Offline


Registered: 09/18/02
Posts: 2168
Loc: VA
I got a 3.4 in my 2002 4Runner

If i had confirmed sludge im gonna add a little something towards the end of my OCI. Maybe an Amsoil product?


Edited by Gebo (05/16/18 07:39 AM)
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'98 LEX LS400 280K
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'02 4Runner 225K
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'06 Toyota Highlander 145K
'09 Lex IS350 85K


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#4759333 - 05/16/18 11:00 PM Re: Best detergent oil for light sludge in Toyota 3.4 [Re: kschachn]
addyguy Offline


Registered: 09/08/05
Posts: 14309
Loc: Canada
Originally Posted By: kschachn
And here we go again "cleaning up" and engine that doesn't have a confirmed problem. The OP has been asked about it but hasn't answered.


+1 to this. Very few engines these days actually have visual sludge in them.

OP is asked to confirm if he does have sludge in the engine, and he ignores the question and disappears.

Priceless!
_________________________
2010 Kia Soul 2U - 2.0L I-4, auto; 130k miles.
M1 EP 10W-30; OEM Kia filter.

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#4761586 - 05/19/18 03:37 AM Re: Best detergent oil for light sludge in Toyota 3.4 [Re: jongies3]
xtell Offline


Registered: 12/13/06
Posts: 525
Loc: ohio
2004 Tacoma, typo- brain was not working

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