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#4611474 - 12/22/17 04:27 PM Diesel oils - high detergent?
928 Offline


Registered: 07/25/17
Posts: 14
Loc: Sacramento, Ca.
I need to clean out the results of running castrol gtx 20/50 for 150k miles ( gummed up lifters) in a gas engine. Car is a Porsche requiring heavy oil
Not really a fan of dumping atf etc in the oil.
Does delo , valvoline or rotella have more detergents than conventional oils? Planning on oil & filt changes every 3000 until it hopefully clears up.


Edited by 928 (12/22/17 04:29 PM)
Edit Reason: added

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#4611494 - 12/22/17 04:59 PM Re: Diesel oils - high detergent? [Re: 928]
neil57 Offline


Registered: 12/24/14
Posts: 34
Loc: S. Ont. Canada
Dump a can of seafoam and some cheap supertech Walmart oil in. Repeat as necessary.
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#4611506 - 12/22/17 05:16 PM Re: Diesel oils - high detergent? [Re: 928]
Bronco1 Offline


Registered: 01/06/17
Posts: 137
Loc: Colorado
this would be a good question for Molakule to chime in on.
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#4611561 - 12/22/17 06:20 PM Re: Diesel oils - high detergent? [Re: 928]
DoubleWasp Offline


Registered: 05/21/12
Posts: 5236
Loc: Fort Lauderdale, FL
GTX gummed up your lifters? It's high in detergents itself.

How did that happen?
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#4611618 - 12/22/17 07:30 PM Re: Diesel oils - high detergent? [Re: 928]
sw99 Offline


Registered: 03/22/06
Posts: 2120
Loc: Colorado
I do occasional summer runs of Rotella T5 10w30 or Delo LE 10w30 and 20% MMO to keep things clean. I would try a 3k OCI and see if that helps.
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#4611673 - 12/22/17 08:53 PM Re: Diesel oils - high detergent? [Re: DoubleWasp]
MolaKule Offline


Registered: 06/05/02
Posts: 19042
Loc: Iowegia - USA
Originally Posted By: DoubleWasp
GTX gummed up your lifters? It's high in detergents itself.

How did that happen?


Must have overextended the oil change interval or had a stuck thermostat.

Quote:
Planning on oil & filt changes every 3000 until it hopefully clears up.


I would run LCD's LC20 in with the oil until they clear up.

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#4611677 - 12/22/17 08:59 PM Re: Diesel oils - high detergent? [Re: 928]
SavagePatch Offline


Registered: 05/06/15
Posts: 571
Loc: California
Try this:




It's only available at WalMart.

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#4611681 - 12/22/17 09:03 PM Re: Diesel oils - high detergent? [Re: 928]
Rock_Hudstone Offline


Registered: 11/13/07
Posts: 1449
Loc: New Jersey
Originally Posted By: 928
Does delo , valvoline or rotella have more detergents than conventional oils? Planning on oil & filt changes every 3000 until it hopefully clears up.


Rotella T5 syn-blends and the T4 still have decent levels of calcium detergent.

http://rotella.shell.com/products.html

The Delo and Valvoline Ca levels are down quite a bit since the change over to CK-4 SN grade.

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#4611758 - 12/22/17 11:58 PM Re: Diesel oils - high detergent? [Re: 928]
slowrench Offline


Registered: 11/14/15
Posts: 24
Loc: california
Ive had success with sticky lifter ,in my turbo diesel.I slowly added a QT. of diesel fuel to a hot idling engine.Let it idle or high idle for 15-30min.,then drain.I believe its good to do once in a while,in my old diesels.

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#4612101 - 12/23/17 10:47 AM Re: Diesel oils - high detergent? [Re: 928]
BrocLuno Offline


Registered: 09/06/15
Posts: 5514
Loc: Kalifornia Kollective
KREEN will do it nicely smile MMO may help... BG109 might do it ...

If it were me, I'd just run Valvoline Maxlife as shown above and monitor. But any oil off the Porsche A40 list will do. You just need to change chemistries to start the process smile
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#4612166 - 12/23/17 12:02 PM Re: Diesel oils - high detergent? [Re: 928]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX
I'd run 0W-40 Mobil 1 and change every 5,000
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#4612288 - 12/23/17 02:43 PM Re: Diesel oils - high detergent? [Re: Linctex]
car51 Offline


Registered: 03/12/15
Posts: 10256
Loc: Southwest PA
Originally Posted By: Linctex
I'd run 0W-40 Mobil 1 and change every 5,000


+10,000
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#4612289 - 12/23/17 02:44 PM Re: Diesel oils - high detergent? [Re: BrocLuno]
Rock_Hudstone Offline


Registered: 11/13/07
Posts: 1449
Loc: New Jersey
Originally Posted By: BrocLuno
...If it were me, I'd just run Valvoline Maxlife as shown above and monitor.


Not sure what the big deal s about Maxlife? it just a semi-syn, as is the Rotella T5, and this VOA shows calcium levels are nothing to write home about for an HDEO.

https://bobistheoilguy.com/forums/ubbthreads.php/topics/4068904/Re:_VOA_Valvoline_Heavy_Duty_D

BTW pouring solvents such as diesel fuel in the crankcase is crzy

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#4612297 - 12/23/17 03:05 PM Re: Diesel oils - high detergent? [Re: slowrench]
Oro_O Offline


Registered: 09/20/14
Posts: 1351
Loc: Seattle-ish, WA
Originally Posted By: slowrench
Ive had success with sticky lifter ,in my turbo diesel.I slowly added a QT. of diesel fuel to a hot idling engine.Let it idle or high idle for 15-30min.,then drain.I believe its good to do once in a while,in my old diesels.


This works well. Used to be a Mercedes factory approved method for oil issues. Itís not crazy; just effective.

M1 10w-40 HM and a drive the lenght of WA alos fixed noisy lifters in an SUV of mine several years ago.

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#4612322 - 12/23/17 03:58 PM Re: Diesel oils - high detergent? [Re: Oro_O]
Rock_Hudstone Offline


Registered: 11/13/07
Posts: 1449
Loc: New Jersey
Originally Posted By: Oro_O
Originally Posted By: slowrench
Ive had success with sticky lifter ,in my turbo diesel.I slowly added a QT. of diesel fuel to a hot idling engine.Let it idle or high idle for 15-30min.,then drain.I believe its good to do once in a while,in my old diesels.

This works well. Used to be a Mercedes factory approved method for oil issues. Itís not crazy; just effective.

Approved for gas engines or diesel?

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