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#3279185 - 02/12/14 10:22 AM Kreen treatment plan on 2004 Liberty 3.7l burner
deanm11 Offline


Registered: 12/17/11
Posts: 257
Loc: Northern NJ

I don't plan to keep this car long but I'm going to take a shot at significantly improving the oil consumption. 158k miles on it, my mom was the original owner and I've just recently bought it for my daughter to drive until she goes to college.

I did most of the maintenance on the car over its life - slightly neglected at times in terms of letting oil change intervals get to 10k but nothing horrific. Synthetic probably used 2/3 of the time and with whatever oil filter came in an oil change deal. Maybe it was run a bit too low at times after the consumption became an issue- which probably happened a bit after 100k miles. I'm guessing it burns a quart every 700 miles at this point; I'd say that rate has been fairly steady since it started burning. No real mechanical failures on the car; other maintenance has been limited brakes, tires and maybe one trans pan dump change. (I'm changing both trans filters and plan to do about 3 pan dumps.)

I've put in a new PCV and did a pint of MMO in the oil with no discernible effect. I bought a quart of Kreen and have a tentative plan. I'd like any suggestions on amendments but it must include Kreen in plan; I will consider additional products in the plan.

I also have on the way two sets of Autolite 3923/cheap cooper plugs, 2 new NTK upstream oxygen sensors and a few extra oil filters. I will be picking up the oil needed as referenced in the plan.
Plan:

1) Piston soak. Pull plugs and pour about 2oz Kreen in each cylinder through a brake bleed hose. Rotate motor by hand a few revolutions and let sit for about 48 hours. Any need to thread the plugs back in to close off the soak area?

2) Start it up, watch the smoke show for a bit, drive a few miles and bring back warm for oil change.

3) Put in 10w30 Rotella and new filter with a pint of Kreen. (is that too much?)

4) At 500 miles of this oil fill, change oil filter

5) Another 500 miles and put in a high mileage oil/new filter (not decided on 5w30 or 10w30), new plugs, new oxygen sensors

Thanks for any constructive suggestions.
_________________________
2012 Subie Impr 2.0 99k M1EP 0w20 7.5k
2016 Chall Scat Pack 6.4
2002 Tahoe 5.3 153k 5w30 syn 7.5k

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#3279211 - 02/12/14 10:58 AM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: deanm11]
JHZR2 Offline



Registered: 12/14/02
Posts: 40512
Loc: New Jersey
I'm staying tuned. I consume about the same rate and have a lifter tick. Same mileage roughly. I've run kreen without result. Ditto for MMO.

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#3279242 - 02/12/14 11:15 AM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: JHZR2]
Ramblejam Offline


Registered: 11/05/13
Posts: 3152
Loc: Kentucky
Originally Posted By: JHZR2
I'm staying tuned. I consume about the same rate and have a lifter tick. Same mileage roughly. I've run kreen without result. Ditto for MMO.


What vehicle/engine?
Tick on cold start, or constant?


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#3279287 - 02/12/14 11:37 AM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: deanm11]
Doog Offline


Registered: 10/24/11
Posts: 6170
Loc: North Coast
Your plan sounds interesting and I would follow it. I would however do an oil flush after the kreen with cheap oil for 500 miles. Then go to PP 5w30 or 10w30 if you can find it and purolator filter and do 5000 mile OCI's. I would stay with the PP for the balance of the time you own it. It is a great cleaning oil and will clean that engine over time.
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#3279307 - 02/12/14 11:48 AM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: Ramblejam]
JHZR2 Offline



Registered: 12/14/02
Posts: 40512
Loc: New Jersey
Originally Posted By: Ramblejam
Originally Posted By: JHZR2
I'm staying tuned. I consume about the same rate and have a lifter tick. Same mileage roughly. I've run kreen without result. Ditto for MMO.


What vehicle/engine?
Tick on cold start, or constant?



Mine is a 91 BMW 318i with M42 engine Ive posted about elsewhere. Tick is only at cold start. Consumption is intermittent. Thoguht kreen or MMO would solve the tick issue but apparently not.

Perhaps tick and consumption are related, like a bad valve...

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#3279350 - 02/12/14 12:16 PM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: JHZR2]
demarpaint Offline


Registered: 07/03/05
Posts: 28434
Loc: NY
Originally Posted By: JHZR2

Mine is a 91 BMW 318i with M42 engine Ive posted about elsewhere. Tick is only at cold start. Consumption is intermittent. Thoguht kreen or MMO would solve the tick issue but apparently not.

Perhaps tick and consumption are related, like a bad valve...


It could be.
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#3279534 - 02/12/14 03:17 PM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: Doog]
deanm11 Offline


Registered: 12/17/11
Posts: 257
Loc: Northern NJ
I will incorporate your recommendation, thank you. This process is going to take some time with the modest miles put on this vehicle... I will get it used extra miles over normal to make it go faster.... despite the horrific gas mileage...


Originally Posted By: Doog
Your plan sounds interesting and I would follow it. I would however do an oil flush after the kreen with cheap oil for 500 miles. Then go to PP 5w30 or 10w30 if you can find it and purolator filter and do 5000 mile OCI's. I would stay with the PP for the balance of the time you own it. It is a great cleaning oil and will clean that engine over time.


Edited by deanm11 (02/12/14 03:17 PM)
_________________________
2012 Subie Impr 2.0 99k M1EP 0w20 7.5k
2016 Chall Scat Pack 6.4
2002 Tahoe 5.3 153k 5w30 syn 7.5k

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#3279570 - 02/12/14 03:45 PM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: deanm11]
deanm11 Offline


Registered: 12/17/11
Posts: 257
Loc: Northern NJ
Any recommendations on Rotella type for that particular run with the pint of Kreen? It is pretty cold in NJ...
_________________________
2012 Subie Impr 2.0 99k M1EP 0w20 7.5k
2016 Chall Scat Pack 6.4
2002 Tahoe 5.3 153k 5w30 syn 7.5k

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#3279628 - 02/12/14 04:31 PM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: deanm11]
Trav Offline


Registered: 11/20/06
Posts: 16503
Loc: MA, Mittelfranken.de
Originally Posted By: deanm11
Any need to thread the plugs back in to close off the soak area?

Yes. Put the plugs back in, hand tight is fine.
Kreens solvents evaporate quickly and you don't want anything like dirt falling in the plug holes.

Piston soak on a V or horizontal engine is a bit of a bugger and is usually not very successful at freeing sticky rings because only part of the piston really "soaks" in the solvent regardless of the product.

Try to get a small hose shooting product all the way around the piston, a large disposable plastic syringe works good.
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#3279641 - 02/12/14 04:39 PM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: deanm11]
TrevorS Offline


Registered: 07/14/13
Posts: 1281
Loc: California
Before something like Kreen I might be tempted to try a high ester oil.

If I couldn't wait, I would try a detergent based engine flush product.

Also why not go to thicker / high mileage oil to reduce consumption? A quart every 700 miles must be getting expensive!

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#3279647 - 02/12/14 04:42 PM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: Trav]
demarpaint Offline


Registered: 07/03/05
Posts: 28434
Loc: NY
Originally Posted By: Trav
Originally Posted By: deanm11
Any need to thread the plugs back in to close off the soak area?

Yes. Put the plugs back in, hand tight is fine.
Kreens solvents evaporate quickly and you don't want anything like dirt falling in the plug holes.

Piston soak on a V or horizontal engine is a bit of a bugger and is usually not very successful at freeing sticky rings because only part of the piston really "soaks" in the solvent regardless of the product.

Try to get a small hose shooting product all the way around the piston, a large disposable plastic syringe works good.


Those syringes work great. Do you also recommend turning the engine over by hand [via a breaker bar] every few hours and refilling? That's how we've done it and it seems to work well.
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God Bless Our Troops


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#3279680 - 02/12/14 05:00 PM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: demarpaint]
Trav Offline


Registered: 11/20/06
Posts: 16503
Loc: MA, Mittelfranken.de
Sure why not it cant hurt. You just want to get as much product all around the rings as possible.
_________________________
ASE L1, Master. Deutsch Meisterbrief.

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#3279685 - 02/12/14 05:06 PM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: deanm11]
TrevorS Offline


Registered: 07/14/13
Posts: 1281
Loc: California
I would run Techron through a full tank as well, prior to a piston soak or anything else.

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#3279715 - 02/12/14 05:27 PM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: Trav]
demarpaint Offline


Registered: 07/03/05
Posts: 28434
Loc: NY
Originally Posted By: Trav
Sure why not it cant hurt. You just want to get as much product all around the rings as possible.


A nice long soak time works well too. After the soak take the car for a drive and change the oil and filter.
_________________________
God Bless Our Troops


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#3279757 - 02/12/14 05:57 PM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: demarpaint]
Trav Offline


Registered: 11/20/06
Posts: 16503
Loc: MA, Mittelfranken.de
Kreen in the oil probably has a better chance of producing some results if in fact any are obtainable.
You know yourself there is really no magic bullet, once something is stuck (not just sticking) everything you try is a hail Mary pass.

Giving the product time to work is important with any product. Personally for genuinely stuck rings i would soak them in Chemtool and use the Kreen in the oil.
The object is to break the ring free of the carbon and varnish filled grooves, its not easy.
_________________________
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