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Lubrication Engineers - Monolec Gear Oil #4455814
07/11/17 12:05 AM
07/11/17 12:05 AM
Joined: Dec 2006
Posts: 568
ohio
xtell Offline OP
xtell  Offline OP

Joined: Dec 2006
Posts: 568
ohio
Anyone ever use Lubrication Engineers / Monolec Syn - All Climate Gear Lubricant 9919 (75W-90). Just wondering how it holds up in manual transmissions and differentials. Looking at the PDS information sheets it has some good numbers for low temp pour point (-60F), flash point (414F), 100 deg viscosity of 16 and 40 degree viscosity of 115. It also meets a lot of performance requirements.

Re: Lubrication Engineers - Monolec Gear Oil [Re: xtell] #4455891
07/11/17 05:42 AM
07/11/17 05:42 AM
Joined: Dec 2003
Posts: 919
Monroe,CT
Bambam Offline
Bambam  Offline

Joined: Dec 2003
Posts: 919
Monroe,CT
I worked at a plant that used nothing but LE oil, from 75w90 to 150,220 & 460 gear oils, they out performed anything we put up against them. We had gearboxes last 7 years with the same oil, verified and monitored with o a .


07 DMAX CC 4x4 ~ Synthetics in the driveline, Delo XLE 15w40 in the sump.
Dirt Bikes and a Harley for the summer!
Ski-Doo for the winter.



Re: Lubrication Engineers - Monolec Gear Oil [Re: Bambam] #4455911
07/11/17 06:28 AM
07/11/17 06:28 AM
Joined: Sep 2015
Posts: 2,559
Malaysia
zeng Offline
zeng  Offline

Joined: Sep 2015
Posts: 2,559
Malaysia
Originally Posted By: Bambam
I worked at a plant that used nothing but LE oil, from 75w90 to 150,220 & 460 gear oils, they out performed anything we put up against them. We had gearboxes last 7 years with the same oil, verified and monitored with o a .

[email protected]*C of LE is always higher , without fail, than competitor's of similar automotive grade.

Re: Lubrication Engineers - Monolec Gear Oil [Re: xtell] #4455943
07/11/17 07:32 AM
07/11/17 07:32 AM
Joined: Oct 2004
Posts: 3,277
Midwest, Illinois
beanoil Offline
beanoil  Offline

Joined: Oct 2004
Posts: 3,277
Midwest, Illinois
Holy smoke, they are proud of their product.
Is there a tangible benefit to the investment vs. a commonly available gear oil changed at a regular interval in a HD truck?


beanoil: Tough under heat, real dirty afterwards.
Re: Lubrication Engineers - Monolec Gear Oil [Re: xtell] #4455994
07/11/17 08:51 AM
07/11/17 08:51 AM
Joined: Sep 2015
Posts: 2,559
Malaysia
zeng Offline
zeng  Offline

Joined: Sep 2015
Posts: 2,559
Malaysia
Anyone from NA having whining differential noise using LE GL5 gear oils of OEM recommended viscosity grade ?

Re: Lubrication Engineers - Monolec Gear Oil [Re: xtell] #4456162
07/11/17 11:42 AM
07/11/17 11:42 AM
Joined: Jun 2002
Posts: 19,759
Iowegia - USA
MolaKule Offline
Global Moderator
MolaKule  Offline
Global Moderator

Joined: Jun 2002
Posts: 19,759
Iowegia - USA
Originally Posted By: xtell
Anyone ever use Lubrication Engineers / Monolec Syn - All Climate Gear Lubricant 9919 (75W-90). Just wondering how it holds up in manual transmissions and differentials. Looking at the PDS information sheets it has some good numbers for low temp pour point (-60F), flash point (414F), 100 deg viscosity of 16 and 40 degree viscosity of 115. It also meets a lot of performance requirements.


What transmissions? HD over-the-road using MT1 rated lubricants?


"I can't change the direction of the wind, but I can adjust my sails to always reach my destination." Jimmy Dean
Re: Lubrication Engineers - Monolec Gear Oil [Re: MolaKule] #4456820
07/11/17 11:13 PM
07/11/17 11:13 PM
Joined: Dec 2006
Posts: 568
ohio
xtell Offline OP
xtell  Offline OP

Joined: Dec 2006
Posts: 568
ohio
MolaKule

I would be using the noted gear oil in the differentials, transfer cases and manual transmissions of my GM work trucks (light and medium duty) which are used for construction jobs and snow plowing. I found a distributor that lives near me and he said he would give me a good deal on pails of Monolec gear oil. I know that NAPA, Auto Zone, etc. carry good brands of gear oils but I like to use "heavy duty" gear oils that are certified / approved to meet Spicer, Rockwell, Mack, etc. specifications. I just got it into my head that these "heavy duty" gear oils are somehow better than the over the counter gear oils. Anyhow, would you guys consider the Monolec gear oil to be comparable to your choices of top of the line 75w-90 Synthetic gear oils?

Re: Lubrication Engineers - Monolec Gear Oil [Re: xtell] #4457042
07/12/17 09:08 AM
07/12/17 09:08 AM
Joined: Jun 2002
Posts: 19,759
Iowegia - USA
MolaKule Offline
Global Moderator
MolaKule  Offline
Global Moderator

Joined: Jun 2002
Posts: 19,759
Iowegia - USA
Since it appears to satisfy API GL-5, MT-1, I think it will work well.


"I can't change the direction of the wind, but I can adjust my sails to always reach my destination." Jimmy Dean
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