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#4410998 - 05/21/17 11:47 PM Liqui-Moly "Motor Oil Saver" for valve stem seals
1JZ_E46 Offline


Registered: 04/04/16
Posts: 1225
Loc: Oregon
So, no surprise, my N62/TU engine in my X5 is finally showing signs of worn out valve guides and valve stem seals, as is common with pretty much every N62 I've seen with 90k+ miles. After a few minutes of idling I will get a little blue-ish-white smoke after giving it some gas. Anyone hear try Liqui-Moly Motor Oil Saver? I've heard it's about the best seal conditioner additive out there. I've heard of people fixing the smoking issue with a seal conditioner additive after a couple months of use. It says it's good for 5 qts, however I have a 9qt sump. Should I use two bottles?
_________________________
2007 BMW X5 4.8i, 105K: Castrol EDGE 0W-40, Mann
2012 Mini Cooper, 45K: Castrol EDGE 0W-30, Mann

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#4411003 - 05/21/17 11:54 PM Liqui-Moly "Motor Oil Saver" for valve stem seals
1JZ_E46 Offline


Registered: 04/04/16
Posts: 1225
Loc: Oregon
dup


Edited by wwillson (05/22/17 09:21 AM)

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#4411008 - 05/22/17 12:20 AM Re: Liqui-Moly "Motor Oil Saver" for valve stem seals [Re: 1JZ_E46]
FordCapriDriver Offline


Registered: 10/22/15
Posts: 2380
Loc: Balearic Islands , Spain
The only proper fix for old valve stem seals that don' seal properly is new valve stem seals.
_________________________
1975 Ford Capri II Ghia 3000 V6, - Valvoline VR1 20W-50
1988 Ford Escort MkIV 1.6 Xr3i Cabrio, - Shell Rimula R4X 15W-40 HDEO.

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#4411014 - 05/22/17 12:32 AM Re: Liqui-Moly "Motor Oil Saver" for valve stem seals [Re: FordCapriDriver]
1JZ_E46 Offline


Registered: 04/04/16
Posts: 1225
Loc: Oregon
Originally Posted By: FordCapriDriver
The only proper fix for old valve stem seals that don' seal properly is new valve stem seals.


Not helpful.
_________________________
2007 BMW X5 4.8i, 105K: Castrol EDGE 0W-40, Mann
2012 Mini Cooper, 45K: Castrol EDGE 0W-30, Mann

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#4411022 - 05/22/17 01:05 AM Re: Liqui-Moly "Motor Oil Saver" for valve stem seals [Re: 1JZ_E46]
Falcon_LS Offline


Registered: 10/03/08
Posts: 4054
Loc: Kuwait
A search will yield a number of successful results with Motor Oil Saver. It contains esters, which work pretty well. One can is sufficient for 5L of motor oil, so you will need two cans for your application. Give it about 800 km/500 mi to work. Bear in mind, however, it depends entirely on the seal material.
_________________________
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05 Envoy: 51522XP
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#4411028 - 05/22/17 01:59 AM Re: Liqui-Moly "Motor Oil Saver" for valve stem seals [Re: 1JZ_E46]
3800Series Offline


Registered: 08/02/14
Posts: 1452
Loc: Gulf Coast, MS
I've heard of it but never used it. The most popular additive around here in regards to helping with leaks would probably be ATP-205. I've used this one myself but wasn't much luck in my case.

Most people would recommend a high mileage oil as they do help a good bit with leaks but I don't know how well it would work with valve stem seals.

I would agree with the poster above and suggest just fixing it but that's not always economical or practical in some situations trust me we have all been there before.

Liqui-Moly products do tend to have a decent amount of usage around here tho so I'm sure there is more then a few people who would vouch for it but that's just my $0.02

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#4411085 - 05/22/17 06:16 AM Re: Liqui-Moly "Motor Oil Saver" for valve stem seals [Re: 1JZ_E46]
kr_bitog Offline


Registered: 10/06/07
Posts: 884
Loc: South East Asia
Originally Posted By: 1JZ_E46
Originally Posted By: FordCapriDriver
The only proper fix for old valve stem seals that don' seal properly is new valve stem seals.


Not helpful.

Unfortunately FordCapriDriver is right, I had been on the same route, and only top overhaul to replace the seal works. I believe those Motor Oil Saver is good for worn rings, so the additive will create bigger pillow layer to slow down oil consumption. However mostly it is not effective on the valve seal. It may stop leak on the pressed gasket though.

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#4411099 - 05/22/17 07:00 AM Re: Liqui-Moly "Motor Oil Saver" for valve stem seals [Re: 1JZ_E46]
rooflessVW Offline


Registered: 12/24/11
Posts: 4046
Loc: North Carolina
What you want to do is add one bottle to each 5 quart jug so you maintain the proper mix ratio. Then your top off oil has it too.

I have had success using it in your engine on more than one occasion, as long as it is used at the first signs of smoke and not when they make 007 screens.
_________________________
"Zed's dead baby, Zed's dead."

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#4411134 - 05/22/17 07:59 AM Re: Liqui-Moly "Motor Oil Saver" for valve stem seals [Re: 1JZ_E46]
Danh Offline


Registered: 10/16/10
Posts: 1749
Loc: .
Dunno about valve stem seals, but sure worked on the front cover seal of my Duratec 3.0. After first using the suggested dosage, I found I could halve the amount in subsequent OCIs with the same effect.

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#4411148 - 05/22/17 08:18 AM Re: Liqui-Moly "Motor Oil Saver" for valve stem seals [Re: 1JZ_E46]
Falcon_LS Offline


Registered: 10/03/08
Posts: 4054
Loc: Kuwait
Forgot to mention, you will need to add two cans at every oil change if you want to keep the seals pliable.
_________________________
GC 0W40 or Motul X-Cess 5W40:
99 Explorer EB: XG8A
00 Pajero: MD352626
01 Grand Marquis: XG2
03 Expedition SSV: XG2
05 Envoy: 51522XP
07 SRX: XG8765

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#4411180 - 05/22/17 09:12 AM Re: Liqui-Moly "Motor Oil Saver" for valve stem seals [Re: rooflessVW]
1JZ_E46 Offline


Registered: 04/04/16
Posts: 1225
Loc: Oregon
Originally Posted By: rooflessVW
What you want to do is add one bottle to each 5 quart jug so you maintain the proper mix ratio. Then your top off oil has it too.

I have had success using it in your engine on more than one occasion, as long as it is used at the first signs of smoke and not when they make 007 screens.


Thanks Roofless. Which BMW did you have with the N62? I'm going to give the LM a shot. Now should be a good time since it seems to have just begun, ever so slightly.
_________________________
2007 BMW X5 4.8i, 105K: Castrol EDGE 0W-40, Mann
2012 Mini Cooper, 45K: Castrol EDGE 0W-30, Mann

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#4411195 - 05/22/17 09:37 AM Re: Liqui-Moly "Motor Oil Saver" for valve stem seals [Re: 1JZ_E46]
rooflessVW Offline


Registered: 12/24/11
Posts: 4046
Loc: North Carolina
I farm a lot of side work from local clubs and fb groups. When you start talking valve stems seals people understandably want to delay the inevitable or just slow the smoke. Two X5s such as yours and a few 545i have benefitted from LM motor oil saver, and it worked on my 735i when I didn't feel like doing valve stems seals ASAP.
_________________________
"Zed's dead baby, Zed's dead."

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#4411197 - 05/22/17 09:38 AM Re: Liqui-Moly "Motor Oil Saver" for valve stem seals [Re: 1JZ_E46]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX
Give it a try and report back.

I'm curious if it works..... though very doubtful.
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(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

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#4411250 - 05/22/17 10:35 AM Re: Liqui-Moly "Motor Oil Saver" for valve stem seals [Re: Linctex]
1JZ_E46 Offline


Registered: 04/04/16
Posts: 1225
Loc: Oregon
Originally Posted By: rooflessVW
I farm a lot of side work from local clubs and fb groups. When you start talking valve stems seals people understandably want to delay the inevitable or just slow the smoke. Two X5s such as yours and a few 545i have benefitted from LM motor oil saver, and it worked on my 735i when I didn't feel like doing valve stems seals ASAP.


Good to hear. I love this car, but it's a maintenance nightmare. I wouldn't have it if I couldn't do all the work myself. Parts for older BMWs aren't bad cost-wise.

Originally Posted By: Linctex
Give it a try and report back.

I'm curious if it works..... though very doubtful.


Will do. Should take me about a month or so to go 1k miles.
_________________________
2007 BMW X5 4.8i, 105K: Castrol EDGE 0W-40, Mann
2012 Mini Cooper, 45K: Castrol EDGE 0W-30, Mann

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#4411291 - 05/22/17 11:30 AM Re: Liqui-Moly "Motor Oil Saver" for valve stem seals [Re: 1JZ_E46]
vintageant Offline


Registered: 10/27/06
Posts: 427
Loc: Florida, USA
"The only proper fix for old valve stem seals that don't seal properly is new valve stem seals."

What about older engines, such as mine, that never had valve stem seals?
_________________________
1925 Alvis HDEO 15W40
1937 Alvis Speed 25 20W50 w LM MoS2 & LM MOS
1970 VW Peking - Paris Rally Beetle HDEO 15W40 w LM MoS2
1987 Porsche 924S HDEO 15W40

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