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#3279954 - 02/12/14 08:05 PM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: TrevorS]
deanm11 Offline


Registered: 12/17/11
Posts: 61
Loc: Northern NJ
10w30 as compared to 5w30 and high mileage oil didn't seem to change anything though my records on oil add/consumption were spotty.

A quart every 700 isn't all that expensive actually. It works out to the equivalent of like 10c extra per gallon of gas or something like 0.5 gallon in fuel mileage, for example, assuming $4/qt. This process will cost me roughly $125 - a few extra oil changes, the Kreen plus extra miles on the car to speed the process along. That would take me at least 20,000 miles to recoup from less added oil. These Libertys are pigs on gas mileage- I don't know how people justify them for any reasonable amount of mileage use. They are cheap to buy used though.

This project is only about the science experiment aspect + being possibly able to sell the car without an oil consumption issue at a better price.



Originally Posted By: TrevorS
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!


Edited by deanm11 (02/12/14 08:07 PM)

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#3280912 - 02/13/14 04:15 PM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: deanm11]
strat81 Offline


Registered: 01/09/10
Posts: 809
Loc: Nebraska
Add an "italian tune-up" or two to the process.

My GM 5.3L started to sound like death lately - ticking, valve clatter, piston slap... sounded like a diesel even when warm, and that's with M1 0W-40 in there.

Took it on the highway, warmed it up for 10 minutes, then flogged the heck out of it. Lots of idle to redline runs, ran it at 4.5K for a few minutes at a time, etc.

The next morning, it sounded much, much better. The valve clatter and ticking were completely gone, the piston slap greatly reduced when cold.

Whether or not it helped my oil consumption problem, I don't know yet (the 0W-40 was my second attempt to 'fix' that problem). But I do have a new can of Kreen sitting in the garage that will probably get tossed in sometime late next week.
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#3281168 - 02/13/14 07:55 PM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: deanm11]
Clevy Offline


Registered: 11/11/10
Posts: 7402
Loc: Saskatoon canada
K. As far as carbon goes I was stunned by mmo and how it softened the carbon on my stock Harley pistons. I accidentally spilled some on one of my pistons when I took them out to go big bore. The mmo only splashed the piston and not the whole piston was covered. A couple days after spilling on the piston I saw the deposits and they looked wet,and the carbon was so soft I wiped it off with my thumb,then a shop rag,but the deposits that didn't get mmo spilled on them were still as hard as ever and not removable.
So I'm sold on mmo for carbon,and I'd use it for a piston soak. I'd fill the entire cylinder bore then put in the old plugs to close the hole. Leave it for a few days then hand crank the engine slowly so it can splash the valves too.
Just my opinion. Mmo really surprised me and how it softened up the severe carbon deposits on my pistons. Softened them so much they wiped right off revealing a nice shiny crown.
_________________________
2006 Charger RT
Miles x 2 per oil filter

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#3281336 - 02/13/14 10:31 PM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: deanm11]
TrevorS Offline


Registered: 07/14/13
Posts: 1281
Loc: California
MMO didn't work for him in the oil. Do you think the oil neutralized MMOs cleaning ability?

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#3281338 - 02/13/14 10:33 PM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: TrevorS]
Clevy Offline


Registered: 11/11/10
Posts: 7402
Loc: Saskatoon canada
Originally Posted By: TrevorS
MMO didn't work for him in the oil. Do you think the oil neutralized MMOs cleaning ability?


I didn't suggest adding it to the oil. I suggested a piston soak
_________________________
2006 Charger RT
Miles x 2 per oil filter

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#3281428 - 02/14/14 12:55 AM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: deanm11]
TrevorS Offline


Registered: 07/14/13
Posts: 1281
Loc: California
Didn't say you did. Note the past tense in my question.

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#3281592 - 02/14/14 07:54 AM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: TrevorS]
krismoriah72 Offline


Registered: 02/16/09
Posts: 141
Loc: wv
3.7 chrysler engines are known for failed lash adjusters "lifters" which cause the dreaded ticking and oil consumption.

Kreen may do some cleaning but will not repair the issue.

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#3281650 - 02/14/14 09:01 AM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: krismoriah72]
deanm11 Offline


Registered: 12/17/11
Posts: 61
Loc: Northern NJ
Thank you for this info. How is oil consumed due to this? A failed/partially failed lifter leads to incomplete valve opening and then ? For this vehicle, I have not discerned that this motor has noticeable ticking but is possible I just haven't picked it up.


Originally Posted By: krismoriah72
3.7 chrysler engines are known for failed lash adjusters "lifters" which cause the dreaded ticking and oil consumption.

Kreen may do some cleaning but will not repair the issue.

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#3281913 - 02/14/14 12:17 PM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: deanm11]
krismoriah72 Offline


Registered: 02/16/09
Posts: 141
Loc: wv
If it isnt ticking..then the lifters are probably good.

Does it smoke alot during startup? bluish smoke? if so then valve stem seals most likely.

Does it smoke after warming up? the more fuel you give it the more it smokes? if so then probably cracked or very worn piston ring causing blowby which then goes thru the crankcase into the pcv then burns the oil.

Give us more info so that we can see where you are losing your oil. Also note that heavy oil burning through combustion will lead to failure of your cat converters.

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#3281991 - 02/14/14 01:27 PM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: Trav]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 15150
Loc: Sunny Florida
Originally Posted By: Trav
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.


Nope. And it is many times not successful, too. But that is the nature of Kreen, it is unlikely to be needed in any newer good running engine!

We have had great success with Kreen here, sometimes truly amazing. And it is wonderful for carbon build up. The best I have ever seen IME...
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Best ET-12.79 @ 111 mph
4340 pounds, Street tires
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#3281996 - 02/14/14 01:29 PM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: strat81]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 15150
Loc: Sunny Florida
Originally Posted By: strat81
Add an "italian tune-up" or two to the process.

My GM 5.3L started to sound like death lately - ticking, valve clatter, piston slap... sounded like a diesel even when warm, and that's with M1 0W-40 in there.

Took it on the highway, warmed it up for 10 minutes, then flogged the heck out of it. Lots of idle to redline runs, ran it at 4.5K for a few minutes at a time, etc.

The next morning, it sounded much, much better. The valve clatter and ticking were completely gone, the piston slap greatly reduced when cold.

Whether or not it helped my oil consumption problem, I don't know yet (the 0W-40 was my second attempt to 'fix' that problem). But I do have a new can of Kreen sitting in the garage that will probably get tossed in sometime late next week.


make sure you use the Kreen in both the gas and the oil as recommended on the can.

Judging from your story some of the noise you were hearing was carbon knock, the ITU knocked some of it out for a quieter engine. Carbon knock is often confused with piston slap and can seem very similar...
_________________________
"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix

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#3282895 - 02/15/14 11:06 AM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: deanm11]
deanm11 Offline


Registered: 12/17/11
Posts: 61
Loc: Northern NJ

Piston soak in progress. I screwed up the plan by reading the can instructions- they suggest adding the Kreen to your existing fill so after I read that I put it into the oil without remembering I was going to put it in with fresh Rotella. The original plan was kind of long for how little this car gets used so with my screw-up and in combination with the advice I've gotten, here's what I've done and the simplified plan:

1) Pulled plugs and put about 1.5oz Kreen per cylinder with syringe and hose. Replaced plugs loosely and cranked motor over a few times. Put about 8oz Kreen in 3/4 tank of fuel. Put about 16oz Kreen in existing oi fill. 158,457 miles Feb 15,2014

2) After 48hrs of soak, drive around 200 miles and change oil with 10w30 T5 Rotella and new filter

3) Drive 500 miles, put in Penzoil Platinum 10w30 and new filter, new plugs, new oxygen sensors

4) Monitor new consumption rate closely


Now that I've blown my Kreen supply, I guess I would consider an additional product in the Rotella run (and consider running it longer than the 500mi).

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#3283023 - 02/15/14 01:07 PM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: deanm11]
deanm11 Offline


Registered: 12/17/11
Posts: 61
Loc: Northern NJ
I'm probably going to order another quart of Kreen. I want to get it in the Rotella run.

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#3290778 - 02/22/14 03:50 PM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: deanm11]
steve20 Offline


Registered: 06/19/07
Posts: 3084
Loc: NJ
since the vehicle is not used often---what do you think of this idea? Put the required amount of fresh Kreen in the oil. Only run the motor for 10 minutes every day for 5 days in a row---just enough for Kreen to circulate and start its cleaning, this will also help reduce the amount of product which evaporates. After 5 days drive normally
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#3297414 - 02/28/14 02:12 PM Re: Kreen treatment plan on 2004 Liberty 3.7l burner [Re: steve20]
deanm11 Offline


Registered: 12/17/11
Posts: 61
Loc: Northern NJ
Originally Posted By: steve20
since the vehicle is not used often---what do you think of this idea? Put the required amount of fresh Kreen in the oil. Only run the motor for 10 minutes every day for 5 days in a row---just enough for Kreen to circulate and start its cleaning, this will also help reduce the amount of product which evaporates. After 5 days drive normally


The Liberty got 100 or so more miles on it, maybe 200 since the initial Kreen. I plan to change the oil/filter with Rotella tomorrow. I'm thinking of cutting the old oil filter open to see if I can identify carbon chunks.

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