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DOHC/Timing chain Mix? #5065916 04/06/19 08:01 AM
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daman Offline OP
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Guys I have a 2012 GM Inline 5 cyl 3.7 with a DOHC and a big timing chain, looking for maximum anti-wear for the cam lobes but mostly for this timing chain, as its a bear to change out.

The mix I have on hand I was going to use is 6qts SM M1 0w40 and a can of Lubro-Moly Mos2, that's looking like it should give me a boat of my anti wear adds.

OR...should I go with just M1 dexos 5w30 as I know that's a stringent spec.

Looking at these VOA's I'll probably go with my mix? thoughts?

LM
https://www.bobistheoilguy.com/foru...9/lubro-moly-mos2-antifriction-treatment

SM 0w40
https://www.bobistheoilguy.com/forums/ubbthreads.php/topics/1722539/mobil-1-0w40-voa


"Always"....Mobil 1

Current fill: AFE 0w30
Re: DOHC/Timing chain Mix? [Re: daman] #5065921 04/06/19 08:05 AM
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Trav Offline
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The 0w40 will provide all the anti wear additives that are needed, forget the MoS2.


ASE L1, Master. Deutsch Meisterbrief.
Re: DOHC/Timing chain Mix? [Re: daman] #5066005 04/06/19 09:24 AM
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skyactiv Offline
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Here's my opinion.
The tiniest particles in used engine oil affect the timing chain and it's related components while not affecting other engine parts.
So if your concerned about such wear, I recommend shorter oil change intervals such as 5K miles.
UOA's wont show you the wear rate of the timing chain in my opinion.

Seriously, which lubricated parts seem to wear out inside of today's modern engines? The timing chain and it's related components.


Wife: 15' Audi A4 quattro 6 speed manual
Me: 18' Elantra Sport 6 speed manual
The rude guy that points out reality


Re: DOHC/Timing chain Mix? [Re: daman] #5066097 04/06/19 10:59 AM
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JLTD Offline
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Awhile back, someone posted a study that indicated a 10w offered more timing chain wear protection than a 5w or 0w.

Based on that I would consider a 10w-40 summer and your 0w-40 for winter.


Lates.
Re: DOHC/Timing chain Mix? [Re: skyactiv] #5066223 04/06/19 02:36 PM
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bbhero Online Content
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Originally Posted by skyactiv
Here's my opinion.
The tiniest particles in used engine oil affect the timing chain and it's related components while not affecting other engine parts.
So if your concerned about such wear, I recommend shorter oil change intervals such as 5K miles.
UOA's wont show you the wear rate of the timing chain in my opinion.

Seriously, which lubricated parts seem to wear out inside of today's modern engines? The timing chain and it's related components.




A great post here in my opinion ^^↑^^^^^^^


Nissan Altima 3.5 Coupe
Cam2 SuperproMax 5w30 Carquest r84356 Oil filter
"Treat your family like your friends and treat your friends like your family."
Re: DOHC/Timing chain Mix? [Re: skyactiv] #5066229 04/06/19 02:50 PM
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Linctex Offline
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Originally Posted by skyactiv

The tiniest particles in used engine oil affect the timing chain and it's related components while not affecting other engine parts.



I guess we should all be running added-on bypass oil filters


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: DOHC/Timing chain Mix? [Re: Linctex] #5066271 04/06/19 03:55 PM
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daman Offline OP
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Thanks guys, Trav I do believe the MoS2 will be a benefit as the 0w40 is lacking some IMO for this application, I do plan on shortening the OCI to 5k tops and using a FRAM ultra.


"Always"....Mobil 1

Current fill: AFE 0w30
Re: DOHC/Timing chain Mix? [Re: JLTD] #5066273 04/06/19 03:56 PM
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daman Offline OP
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Originally Posted by JLTD
Awhile back, someone posted a study that indicated a 10w offered more timing chain wear protection than a 5w or 0w.

Based on that I would consider a 10w-40 summer and your 0w-40 for winter.


Hmmm I must have missed that, thanks for the tip I may consider that next OC.


"Always"....Mobil 1

Current fill: AFE 0w30
Re: DOHC/Timing chain Mix? [Re: daman] #5066274 04/06/19 03:57 PM
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Garak Offline
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I'd say there's nothing wrong with just running an A3/B4 as it is, like the M1 0w-40 or any of the competition.


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, Wix 57356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: DOHC/Timing chain Mix? [Re: JLTD] #5066358 04/06/19 05:41 PM
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OilUzer Offline
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Originally Posted by JLTD
Awhile back, someone posted a study that indicated a 10w offered more timing chain wear protection than a 5w or 0w.

Based on that I would consider a 10w-40 summer and your 0w-40 for winter.


Interesting since under operating temps where the engine spends most of its time, any xW30 will be a 30 assuming that 0x or 5x or 10x had relatively similar hths to begin with. Were they talking about 10W shearing less as oppose to 0 or 5W?

I will have to search for this study!

Last edited by OilUzer; 04/06/19 05:42 PM.
Re: DOHC/Timing chain Mix? [Re: OilUzer] #5066390 04/06/19 06:19 PM
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Garak Offline
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If one is concerned with VIIs, while motor oil has improved, I'm not sure a 10w-40 would be my choice of oils. If running conventional and worried about VIIs, I'd be looking to a 10w-30 or a 15w-40 first, assuming one isn't interested in monogrades (again, leaving aside the other end of the spectrum, high end VII free multigrades which are also, by definition, monogrades).


Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, Wix 57356
1984 F-150 4.9L - Quaker State GB 10w-30, Wix 51515
Re: DOHC/Timing chain Mix? [Re: daman] #5066399 04/06/19 06:32 PM
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Seeing as you don't have GDI, run a stout 5W30 and a bottle of Hy-per Lube ZRA.

Re: DOHC/Timing chain Mix? [Re: Linctex] #5066415 04/06/19 06:52 PM
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kstanf150 Offline
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I guess so
Never knew the tiny particles affect the timing chain so much
I’m not gonna worry about my rod and main bearings my rings and valve seals and guides anymore
I’ll sleep better at night now 👍

Last edited by kstanf150; 04/06/19 06:56 PM.
Re: DOHC/Timing chain Mix? [Re: daman] #5066423 04/06/19 07:02 PM
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dave1251 Offline
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Originally Posted by daman
Thanks guys, Trav I do believe the MoS2 will be a benefit as the 0w40 is lacking some IMO for this application, I do plan on shortening the OCI to 5k tops and using a FRAM ultra.



Other than advertising hype do you have evidence MoS2 does anything?


make the inside of your engine oil cap white.
don't use.
Re: DOHC/Timing chain Mix? [Re: daman] #5066452 04/06/19 07:39 PM
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Just run the A3 0w40 and sleep well at night. It is a full SAPs formulation and is well additized in the proper balance for the quality additives it uses. Adding other antiwear additives could render the package less effective than as designed.


2018 Trd Pro 4Runner
2018 Tacoma off-road

Dealer 0w20 to M1 0w40 FS -it depends
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