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#4377471 - 04/11/17 11:15 PM Valvoline Synpower vs High Performance gear oil
xtell Offline


Registered: 12/13/06
Posts: 520
Loc: ohio
Valvoline Synpower 75w-90 lists the following:
100C degrees vis at 15.60, 40 degree vis at 100, viscosity index 150, pour point -48C, gravity .865, density 7.22.

Valvoline High Performance Gear Oil 75w-90 lists the following:
100 degrees vis at 15.47, 40C degrees vis at 99, viscosity index 166, pour point at -45C. gravity .865 , density 7.17.

Aside from the larger number of "approvals" listed for the Synpower, would it be correct to say that these two oils, with the data listed, would be similar in the protection they provide given modest change intervals or could the High Performance (conventional) gear oil even be considered as a better overall oil? Assuming the oils are used in a automobile or pick-up truck differential and the vehicle is not raced or involved with a lot of heavy towing.

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#4377473 - 04/11/17 11:21 PM Re: Valvoline Synpower vs High Performance gear oil [Re: xtell]
DrRoughneck Offline


Registered: 02/05/16
Posts: 514
Loc: USA
Absolutely.

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#4377482 - 04/11/17 11:40 PM Re: Valvoline Synpower vs High Performance gear oil [Re: xtell]
buck91 Offline


Registered: 04/17/12
Posts: 2449
Loc: West Michigan
One of the few shops I trust strongly encourages conventional gear oils (Drivetrain Specialists). Of course, I usually run a synthetic anyways although on my last gear install I had them put used 3.73 FoMoCo gears in my Mustang's 8.8 which they filled with dino Xw140. Probably a poor example, though as they are whining nicely under light throttle.
_________________________
2011 F150 4x4 5.0L
1996 Mustang GT 5spd/ragtop

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#4377508 - 04/12/17 01:23 AM Re: Valvoline Synpower vs High Performance gear oil [Re: xtell]
zeng Online   content


Registered: 09/01/15
Posts: 2184
Loc: Malaysia
Originally Posted By: xtell
Aside from the larger number of "approvals" listed for the Synpower, would it be correct to say that these two oils, with the data listed, would be similar in the protection they provide given modest change intervals or .....

No.

Quote:
... or could the High Performance (conventional) gear oil even be considered as a better overall oil? Assuming the oils are used in a automobile or pick-up truck differential and the vehicle is not raced or involved with a lot of heavy towing.

Yes........... from boundary lubrication wear protection perspective.... splitting hairs though.
Think film thickness.


Edited by zeng (04/12/17 01:26 AM)

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#4377558 - 04/12/17 06:03 AM Re: Valvoline Synpower vs High Performance gear oil [Re: xtell]
dnewton3 Offline



Registered: 05/14/07
Posts: 7389
Loc: Indianapolis, IN
Most all of Valvoline's gear lubes pass testing and are listed as approved SAE J-2360 lubricants. That standard is a very stringent sequence of testing including performance criteria (not just bottle ingredients).

Either will do a fine job. I personally use the 80w-90 conventional in my cars.

The syn is likely to last longer in service, but that's moot, as you'll OCI before any reasonable condemnation point anyway. (you state "modest change intervals" ...)

http://p-r-i.org/other-programs/automotive-qpl/lubricant/
open the "current QPL listing" link from this site
browse all the lubes by manufacturer
Notice that there are a lot of dino oils that meet the same tough standards as the syns.
Also, I've noted that some syns are absent; such as Mobil 1 (Devlac 1 gear oil is present, but not the automotive Mobil 1 gear oils. The dino Mobil gear oil is present, however ....)


I will also note that the dino Valvoline 75w-90 is not on the list, but they show the 80w-90 twice (on lines 336 and 337); same happens for the 85w-140. Why license the identical fluid twice? I have emailed about this and await their reply.




Edited by dnewton3 (04/12/17 06:26 AM)
_________________________
The act of preventative maintenance, in and of itself, is FAR MORE important than brand/grade/base choices among lubes and filters.
- under maintaining something is akin to abuse/neglect; that can kill equipment by shortening the lifespan
- over maintaining something has never been proven to be anything but a waste of time and money

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#4377892 - 04/12/17 01:50 PM Re: Valvoline Synpower vs High Performance gear oil [Re: dnewton3]
xtell Offline


Registered: 12/13/06
Posts: 520
Loc: ohio
Thank you to everyone for your incite on these two oils. The Valvoline 75w-90 conventional oil sure does look good compared to other dino gear oils.

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#4438137 - 06/22/17 12:46 AM Re: Valvoline Synpower vs High Performance gear oil [Re: dnewton3]
SmrtJustin Offline


Registered: 06/24/06
Posts: 55
Loc: Fort Wayne, IN
Originally Posted By: dnewton3
Most all of Valvoline's gear lubes pass testing and are listed as approved SAE J-2360 lubricants. That standard is a very stringent sequence of testing including performance criteria (not just bottle ingredients).

Either will do a fine job. I personally use the 80w-90 conventional in my cars.

The syn is likely to last longer in service, but that's moot, as you'll OCI before any reasonable condemnation point anyway. (you state "modest change intervals" ...)

http://p-r-i.org/other-programs/automotive-qpl/lubricant/
open the "current QPL listing" link from this site
browse all the lubes by manufacturer
Notice that there are a lot of dino oils that meet the same tough standards as the syns.
Also, I've noted that some syns are absent; such as Mobil 1 (Devlac 1 gear oil is present, but not the automotive Mobil 1 gear oils. The dino Mobil gear oil is present, however ....)


I will also note that the dino Valvoline 75w-90 is not on the list, but they show the 80w-90 twice (on lines 336 and 337); same happens for the 85w-140. Why license the identical fluid twice? I have emailed about this and await their reply.




In the 6/9/17 approval list I'm looking at, I think "SynPower 75w-90" is the only 'normal' Valvoline gear oil approved. All of the other USA Valvoline listings are for Valvoline Heavy Duty Gear Oil, which I believe is this product: http://hd.valvoline.com/our-products/valvoline-heavy-duty-gear-oil. The Valvoline High Performance Gear Oil listings are for the Australian version: https://www.valvoline.com/en-australia/o...e-hp-gear-oils.

Not to say there's anything wrong with the USA Valvoline 80w-90 conventional, I'm using it currently in my Jeep.


Edited by SmrtJustin (06/22/17 12:47 AM)
_________________________
2012 Ford Mustang Boss 302 - Motorcraft 5W-50
2002 Chevrolet Tahoe - Harvest King FS dexos1 5W-30
1989 Jeep Grand Wagoneer - Harvest King HDEO 15W-40

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#4453032 - 07/08/17 05:22 AM Re: Valvoline Synpower vs High Performance gear oil [Re: xtell]
dnewton3 Offline



Registered: 05/14/07
Posts: 7389
Loc: Indianapolis, IN
No, the HD syn gear oil is only available in 75w-90 for the thinner grade. In additional to the SynPower, the QPL listing is for the "normal" conventional 80w-90 you'd see in most auto-parts places. I even emailed both QPL and Valvoline for clarification. The reason there are multiple listings for the same vis/grade is because if they produce the lubes at different locations, they have to qualify products from each location. Seems duplicitous to me, but that's why it's done that way.


Edited by dnewton3 (07/08/17 05:22 AM)
_________________________
The act of preventative maintenance, in and of itself, is FAR MORE important than brand/grade/base choices among lubes and filters.
- under maintaining something is akin to abuse/neglect; that can kill equipment by shortening the lifespan
- over maintaining something has never been proven to be anything but a waste of time and money

Top