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#4168290 - 08/03/16 04:47 PM PEAK 5W40 Heavy Duty Engine Oil
pb379 Offline


Registered: 10/10/14
Posts: 152
Loc: Texas
Does anyone know much about this oil?
http://images.peakauto.com/PEAK_5W40_CJ4_spec_sheet_no%20back_lores.pdf

Who actually makes this oil? Valvoline, maybe?

Thanks!
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#4168293 - 08/03/16 04:52 PM Re: PEAK 5W40 Heavy Duty Engine Oil [Re: pb379]
Dyusik Offline


Registered: 09/26/14
Posts: 1979
Loc: US-WA
Warren according to trademark.
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#4168294 - 08/03/16 04:57 PM Re: PEAK 5W40 Heavy Duty Engine Oil [Re: pb379]
userfriendly Offline


Registered: 06/03/03
Posts: 2629
Loc: LaFinDuMonde


Edited by userfriendly (08/03/16 05:08 PM)

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#4168314 - 08/03/16 05:20 PM Re: PEAK 5W40 Heavy Duty Engine Oil [Re: pb379]
pb379 Offline


Registered: 10/10/14
Posts: 152
Loc: Texas
Awesome. Thanks!

So, good oil then?
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#4168417 - 08/03/16 07:55 PM Re: PEAK 5W40 Heavy Duty Engine Oil [Re: pb379]
Chris142 Online   content


Registered: 06/05/03
Posts: 16817
Loc: Deplorable in apple valley, ca
Yes very good
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#4168560 - 08/03/16 11:30 PM Re: PEAK 5W40 Heavy Duty Engine Oil [Re: pb379]
nyumski Offline


Registered: 05/14/15
Posts: 227
Loc: Indonesia
Dont guess it is either good or not but run VOA..
So we can know the additives level..
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#4168710 - 08/04/16 08:19 AM Re: PEAK 5W40 Heavy Duty Engine Oil [Re: nyumski]
kschachn Offline


Registered: 12/26/05
Posts: 9381
Loc: Upper Midwest
Originally Posted By: nyumski
Dont guess it is either good or not but run VOA..
So we can know the additives level..


Who is qualified to determine the future performance of an oil based on a Blackstone type VOA?
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#4168865 - 08/04/16 11:28 AM Re: PEAK 5W40 Heavy Duty Engine Oil [Re: pb379]
pb379 Offline


Registered: 10/10/14
Posts: 152
Loc: Texas
I'm just asking "in general terms" is this oil a decent oil to use. Is it comparable to Valvoline, Rotella or DELO.
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#4169181 - 08/04/16 06:43 PM Re: PEAK 5W40 Heavy Duty Engine Oil [Re: pb379]
roadrunner1 Offline


Registered: 04/08/09
Posts: 1285
Loc: oh
If it carries the CJ-4 spec then its good, its that simple.
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#4169233 - 08/04/16 08:35 PM Re: PEAK 5W40 Heavy Duty Engine Oil [Re: roadrunner1]
pb379 Offline


Registered: 10/10/14
Posts: 152
Loc: Texas
Originally Posted By: roadrunner1
If it carries the CJ-4 spec then its good, its that simple.


No, it isn't that simple smile
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#4169439 - 08/05/16 06:56 AM Re: PEAK 5W40 Heavy Duty Engine Oil [Re: pb379]
alarmguy Offline


Registered: 07/10/12
Posts: 2147
Loc: South Carolina
Yes it is. Unless you have testing facilities and methods that surpass the API equipment and testing methods it is as simple as that.
A CJ4 oil is just as good as any other CJ4 oil unless documented tests results prove otherwise comparing two oils under the same exact testing methods. Any claim otherwise means nothng more the old snake oil.

You asked abut Peak oil, a certified CJ4 oil, there is no proving another CJ4 oil twice at its cost is any better, other then fancy marketing.


Edited by alarmguy (08/05/16 07:04 AM)
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#4169470 - 08/05/16 07:29 AM Re: PEAK 5W40 Heavy Duty Engine Oil [Re: pb379]
zeng Offline


Registered: 09/01/15
Posts: 2186
Loc: Malaysia
Alarmguy,
+1 thumbsup


Edited by zeng (08/05/16 07:29 AM)

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#4169476 - 08/05/16 07:39 AM Re: PEAK 5W40 Heavy Duty Engine Oil [Re: pb379]
Bighorn2500 Offline


Registered: 05/24/16
Posts: 313
Loc: Michigan, USA
Originally Posted By: pb379
I'm just asking "in general terms" is this oil a decent oil to use. Is it comparable to Valvoline, Rotella or DELO.



Yes, it is comparable. Warren oil bottles for many companies/brands.
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2012 Ram 2500 SLT 6.7L Cummins 4x4
2015 Jeep Cherokee 3.2L Latitude 4x4

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#4169492 - 08/05/16 08:09 AM Re: PEAK 5W40 Heavy Duty Engine Oil [Re: alarmguy]
pb379 Offline


Registered: 10/10/14
Posts: 152
Loc: Texas
Originally Posted By: alarmguy
Yes it is. Unless you have testing facilities and methods that surpass the API equipment and testing methods it is as simple as that.
A CJ4 oil is just as good as any other CJ4 oil unless documented tests results prove otherwise comparing two oils under the same exact testing methods. Any claim otherwise means nothng more the old snake oil.

You asked abut Peak oil, a certified CJ4 oil, there is no proving another CJ4 oil twice at its cost is any better, other then fancy marketing.


Look, I'm just poking fun. If it were that simple we wouldn't have BITOG. grin

My truck's book says the oil must be fully synthetic, 5W40, meet FCA MS-10902 and CJ-4 or ACEA E9/E7 or ACEA A3/B4.

So, not just ANY CJ-4 oil will suffice.
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2014 RAM 1500 ECODIESEL
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1995 BMW M3

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#4169520 - 08/05/16 08:45 AM Re: PEAK 5W40 Heavy Duty Engine Oil [Re: alarmguy]
Garak Offline


Registered: 12/05/09
Posts: 24574
Loc: Regina, Saskatchewan, Canada
Originally Posted By: alarmguy
You asked abut Peak oil, a certified CJ4 oil, there is no proving another CJ4 oil twice at its cost is any better, other then fancy marketing.

Generally speaking, in a vanilla application, yes. But, what builder approvals or ACEA specifications does it meet? An E7, E9 CJ-4 lube tends to have a starting TBN higher by 30 or 40%.
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Plain, simple Garak.

2008 Infiniti G37 - Shell ROTELLA T6 Multi-Vehicle 5w-30, NAPA Gold 7356
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