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Valvoline Synpower vs High Performance gear oil #4377471
04/11/17 11:15 PM
04/11/17 11:15 PM
Joined: Dec 2006
Posts: 527
ohio
xtell Offline OP
xtell  Offline OP
Joined: Dec 2006
Posts: 527
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.

Re: Valvoline Synpower vs High Performance gear oil [Re: xtell] #4377473
04/11/17 11:21 PM
04/11/17 11:21 PM
Joined: Feb 2016
Posts: 514
USA
DrRoughneck Offline
DrRoughneck  Offline
Joined: Feb 2016
Posts: 514
USA
Absolutely.

Re: Valvoline Synpower vs High Performance gear oil [Re: xtell] #4377482
04/11/17 11:40 PM
04/11/17 11:40 PM
Joined: Apr 2012
Posts: 2,585
West Michigan
buck91 Offline
buck91  Offline
Joined: Apr 2012
Posts: 2,585
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
Re: Valvoline Synpower vs High Performance gear oil [Re: xtell] #4377508
04/12/17 01:23 AM
04/12/17 01:23 AM
Joined: Sep 2015
Posts: 2,260
Malaysia
zeng Offline
zeng  Offline
Joined: Sep 2015
Posts: 2,260
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.

Last edited by zeng; 04/12/17 01:26 AM.
Re: Valvoline Synpower vs High Performance gear oil [Re: xtell] #4377558
04/12/17 06:03 AM
04/12/17 06:03 AM
Joined: May 2007
Posts: 7,509
Indianapolis, IN
dnewton3 Offline
dnewton3  Offline
Joined: May 2007
Posts: 7,509
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.



Last 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
Re: Valvoline Synpower vs High Performance gear oil [Re: dnewton3] #4377892
04/12/17 01:50 PM
04/12/17 01:50 PM
Joined: Dec 2006
Posts: 527
ohio
xtell Offline OP
xtell  Offline OP
Joined: Dec 2006
Posts: 527
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.

Re: Valvoline Synpower vs High Performance gear oil [Re: dnewton3] #4438137
06/22/17 12:46 AM
06/22/17 12:46 AM
Joined: Jun 2006
Posts: 55
Fort Wayne, IN
SmrtJustin Offline
SmrtJustin  Offline
Joined: Jun 2006
Posts: 55
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.

Last 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
Re: Valvoline Synpower vs High Performance gear oil [Re: xtell] #4453032
07/08/17 05:22 AM
07/08/17 05:22 AM
Joined: May 2007
Posts: 7,509
Indianapolis, IN
dnewton3 Offline
dnewton3  Offline
Joined: May 2007
Posts: 7,509
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.

Last 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

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