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#4646513 - 01/25/18 11:43 PM Lists of API GL-5 and MT-1 approved gear oils?
Izb Offline


Registered: 07/02/08
Posts: 444
Loc: London, UK
Are anywhere lists of officially approved API GL-5 and MT-1 gear oils?

p.s. I have found only list of SAE J2360 oils:
https://cdn.p-r-i.org/wp-content/uploads/2017/10/31173449/LRI-QPL-10-31-17-online.xls

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#4646530 - 01/26/18 12:55 AM Re: Lists of API GL-5 and MT-1 approved gear oils? [Re: Izb]
rooflessVW Offline


Registered: 12/24/11
Posts: 4092
Loc: North Carolina
I don't know of any lists...

But Mobil Delvac 75W-90 is all you need for most anything requiring GL-5 + MT-1.

Castrol Syntrax 75W-90 is also dual rated but doesn't shift as well.
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#4646667 - 01/26/18 07:27 AM Re: Lists of API GL-5 and MT-1 approved gear oils? [Re: Izb]
Farmer Offline


Registered: 08/05/15
Posts: 1111
Loc: BC Canada
Chevron Delo ESI has a GL-5 and MT-1 rating.

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#4646741 - 01/26/18 08:56 AM Re: Lists of API GL-5 and MT-1 approved gear oils? [Re: Izb]
Rand Offline


Registered: 08/20/03
Posts: 12653
Loc: NE,Ohio
What is the application?

MT-1 is usually for non-syncho transmissions.
and possibly some types of axles.


Edited by Rand (01/26/18 08:57 AM)
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#4646753 - 01/26/18 09:10 AM Re: Lists of API GL-5 and MT-1 approved gear oils? [Re: Farmer]
Izb Offline


Registered: 07/02/08
Posts: 444
Loc: London, UK
Originally Posted By: Farmer
Chevron Delo ESI has a GL-5 and MT-1 rating.


Have you ever seen official list of API MT-1 oils?

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#4646803 - 01/26/18 09:46 AM Re: Lists of API GL-5 and MT-1 approved gear oils? [Re: Izb]
Snagglefoot Offline


Registered: 12/31/17
Posts: 1771
Loc: Alberta
Nope, but walk through your favotite parts store and check the back of the bottles.

SF

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#4646853 - 01/26/18 10:33 AM Re: Lists of API GL-5 and MT-1 approved gear oils? [Re: Snagglefoot]
Izb Offline


Registered: 07/02/08
Posts: 444
Loc: London, UK
Originally Posted By: Snagglefoot
Nope, but walk through your favotite parts store and check the back of the bottles.

SF


I wonder about list of official approved MT-1 oils. Not about non-approved labels.

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#4646858 - 01/26/18 10:39 AM Re: Lists of API GL-5 and MT-1 approved gear oils? [Re: Izb]
rooflessVW Offline


Registered: 12/24/11
Posts: 4092
Loc: North Carolina
You're looking for something that doesn't exist.
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"Zed's dead baby, Zed's dead."

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#4646948 - 01/26/18 12:18 PM Re: Lists of API GL-5 and MT-1 approved gear oils? [Re: Izb]
MolaKule Offline


Registered: 06/05/02
Posts: 19042
Loc: Iowegia - USA
Originally Posted By: Izb
Originally Posted By: Snagglefoot
Nope, but walk through your favotite parts store and check the back of the bottles.

SF


I wonder about list of official approved MT-1 oils. Not about non-approved labels.


Approvals come from the manufacturers.

We formulate to develop gear lubricants to satisfy manufactures' gear systems.

Most GL-5 gear lubes are designed to also satisfy Heavy-Duty rated MT-1, non-synchronized, gear boxes.

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#4646951 - 01/26/18 12:24 PM Re: Lists of API GL-5 and MT-1 approved gear oils? [Re: MolaKule]
Izb Offline


Registered: 07/02/08
Posts: 444
Loc: London, UK

SAE J2360 AND MT-1 contains performance requirements that exceed those of API Category GL-5.
For example, SAE J2360 has requirements for elastomer compatibility and gear cleanliness after oxidation that are not contained in API GL-5.

A lot of GL-5 oils doesn't have SAE J2360 and MT-1.


Edited by Izb (01/26/18 12:25 PM)

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#4646978 - 01/26/18 01:01 PM Re: Lists of API GL-5 and MT-1 approved gear oils? [Re: Izb]
MolaKule Offline


Registered: 06/05/02
Posts: 19042
Loc: Iowegia - USA
So you were asking about a list and now you know of a list of GL-5 oils that doesn't have SAE J2360 and MT-1?

I am not sure of your point here but the SAE has this publication:

http://standards.sae.org/j2360_201204/

Quote:
Scope:
The gear lubricants covered by this standard exceed American Petroleum Institute (API) Service Classification API GL-5 and are intended for hypoid type, automotive gear units, operating under conditions of high-speed/shock load and low-speed/high-torque. These lubricants may be appropriate for other gear applications where the position of the shafts relative to each other and the type of gear flank contact involve a large percentage of sliding contact. Such applications typically require extreme pressure (EP) additives to prevent the adhesion and subsequent tearing away of material from the loaded gear flanks. These lubricants are not appropriate for the lubrication of worm gears. Appendix A is a mandatory part of this standard. The information contained in Appendix A is intended for the demonstration of compliance with the requirements of this standard and for listing on the Qualified Products List (QPL) administered by the Lubricant Review Institute (LRI). Appendix A contains a summary of key qualification requirements. A complete listing of qualification requirements and procedures can be found in the Program Document (PD4000) Gear Lubricant Review Program available from the Performance Review Institute, Attn: Secretary of the LRI, 161 Thorn Hill Road, Warrendale, PA 15086, (724) 772-1616 or at www.pri-network.com.

Rationale:
Manufacturers of commercial and military driveline components rely on this industry standard to define a minimum level of performance for use in the qualification of lubricating oils that are used in their equipment. SAE J2360 provides a consistent set of requirements for such qualification processes.




Edited by MolaKule (01/26/18 01:06 PM)

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#4646999 - 01/26/18 01:16 PM Re: Lists of API GL-5 and MT-1 approved gear oils? [Re: Izb]
MolaKule Offline


Registered: 06/05/02
Posts: 19042
Loc: Iowegia - USA

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