Threaded Mode | Linear Mode

06-15-2005, 22:07

--- In WanderlodgeForum@yahoogroups.com, "mrdonut12" <mrdonut12@y...>
wrotey night)

Here is more than you will ever want to know about differential lubes.
I ended up putting in 75W90 in the old 86 I had and have it in the new
04. This string of emails is best read from the bottom up.

From: McGlone, Bruce [Bruce.McGlone@...]
Sent: Friday, January 14, 2005 8:34 AM
To: Cole, Ronald; 'jescoggins@...'
Subject: RE: Axle / Differential Lubricant for R125NX8 342 Axle

Jim;
Thank you for your response. Pennzoil's EW 80W/140 is one of the many
approved SAE 80W/140 gear oils referenced on our upcoming oil approval
list. If needed, this lubricant is also listed on the database of SAE
J2360-approved gear oils as Approval PRI GL0025.
This list is located at web address
http://www.pri.sae.org/PRI/IMprograms/Lu...report.pdf
<http://www.pri.sae.org/PRI/IMprograms/Lu...report.pdf> .
Per your original question, there should be no performance problems or
compatibility problems with ArvinMeritor seals if a carrier were to be
refilled with this oil.

I hope that this answers your questions. If you need additional
information, please contact me at the numbers noted below.

Regards,
Bruce F. McGlone, Senior Chemist, ArvinMeritor Materials Engineering
Office: RD-152
Phone: USA (248) 435-9929
Fax: USA (248) 435-6602
e-mail: Bruce.McGlone@...
= = = = = = = = = = = = = = = = = = = = = = =
<<...OLE_Obj...>>

> -----Original Message-----
> From: James Scoggins [mailto:jescoggins@...
> ]
> Sent: Thursday, January 13, 2005 7:23 PM
> To: 'Cole, Ronald'
> Subject: RE: Axle / Differential Lubricant for R125NX8 342 Axle
>
>
> Thank you for your time and for the response.
>
> Here is all the info on the bucket of gear lube:
>
> Pennzoil FCI
> Gearplus R Super EW
> Synthetic Gear Oil
> SAE 80W140
> API GL-5/MT-1
> Dana SHAES 234
> SHAES 256
> Arvin Meritor O-76
> Mack GO-5
>
> From what I read this stuff should have been OK?
>
> Regards,
> Jim Scoggins
>
> -----Original Message-----
> From: Cole, Ronald [mailto:Ronald.Cole@...
> ]
> Sent: Thursday, January 13, 2005 4:05 PM
> To: 'jescoggins@...'
> Cc: McGlone, Bruce; Vickers, Douglas
> Subject: RE: Axle / Differential Lubricant for R125NX8 342 Axle
>
> Jim Scoggins / Stafford, VA
>
> Ref: Our two (2) telephone conversations today
>
> Here is some input from our Senior Chemist, Bruce McGlone. Believe
> that you probably were using the 80W/140 syn lube and I probably wrote
> down the wrong viscosity grade.
>
> If you wish to have Mr. McGlone advise you on specifics please feel
> free to contact him.
>
> You can get more information on our lubricant recommendations by going
> to the ArvinMeritor web site at
> http://www.arvinmeritor.com/tech_library...=19&sub=45
> <http://www.arvinmeritor.com/tech_library...=19&sub=45>
> <http://www.arvinmeritor.com/tech_library...=19&sub=45
> <http://www.arvinmeritor.com/tech_library...=19&sub=45>
> > . Go to Section 8: Rear Drive Axles, page 150, for current oil lube
> specifications.
>
> The differential carrier pinion oil seal is a unitized type of seal,
> our part number A 1205N2588. This seal is perfectly compatible with
> either petroleum base of synthetic lubricants.
>
> I do not know the oil bath (wheelend) seal that Blue Bird installed or
> uses for servicing the hub/drum assemblies in the R125NX8 342 axles as
> Blue Bird supplied / installed the hub/drum assemblies themselves.
> You might want to confirm to your satisfaction that these seals are
> adequate for synthetic lubricants. Based on my dealings with Blue
> Bird on the current drive axle used in the Wanderlodge (ArvinMeritor
> RC23161 Series
> Axle) the wheelend oil bath oil seal assembly is ArvinMeritor A
1205V2492.
> This seal is perfectly compatible with either petroleum base or
synthetic
> lubricants and could be used with the hubs/drum assemblies assembled to
> the R125NX8 342 axle.
>
> Incidentally, ArvinMeritor currently supplies to Blue Bird completely
> built up axles with lubricant already filled. When synthetic
> lubricant is required we fill with SAE 75W/90 synthetic lubricant.
>
> Please advise if you have further questions.
>
> Regards,
>
> Ron Cole
> Manager, Applications and Customer Support
> Specialty Products Engineering
> 444 Hebron Road
> Heath, OH 43056-1440
> Tel: 740-348-3470
> Fax: 740-348-3608
> E-mail: Ronald.Cole@...
>
>
>
> > -----Original Message-----
> > From: McGlone, Bruce
> > Sent: Thursday, January 13, 2005 3:00 PM
> > To: Cole, Ronald; Vickers, Douglas
> > Subject: RE: Axle / Differential Lubricant for R125NX8 342 Axle
> >
> > Ron;
> >
> > Good question.
> >
> > The 80W/140 visc. grade was not approved by most OEMs (including us)
> > for
> a long time (>10 yrs.) because of reasons involving shear stability.
> Since the current oil-approval spec includes a shear-stability
> requirement (thanks to GM and us), the 80W/140 visc. grade
> specification has been brought out of mothballs and is now a current
> ARM document; the MM#1 document needs to be revised accordingly.
> >
> > FYI: The TP9539 extended-oil-drain approval document has recently
> > been
> extensively re-written (me) and the soon-to-be-issued document lists a
> lot of new approvals, as well as the 80W/140 gear oil spec. for SAE
> J2360-approved (!!!) gear oils.
> >
> > Regards,
> > Bruce F. McGlone, Senior Chemist, ArvinMeritor Materials Engineering
> > Office: RD-152
> > Phone: USA (248) 435-9929 [Comnet 525-9929]
> > Fax: USA (248) 435-6602 [Comnet 525-6602]
> > e-mail: Bruce.McGlone@...
> > = = = = = = = = = = = = = = = = = = = = = = =
> >
> > -----Original Message-----
> > From: Cole, Ronald
> > Sent: Thursday, January 13, 2005 2:44 PM
> > To: McGlone, Bruce; Vickers, Douglas
> > Subject: RE: Axle / Differential Lubricant for R125NX8
> 342
> > Axle
> >
> > Bruce -
> >
> > I probably just wrote down the wrong grade - I know he said '140'
> > so
> it was probably 80W/140 that he used.
> >
> > I just checked MM1, Section 8, page 150 and it says syn lube
> available in 75W/140 or 75W/90 but does not mention 80W/140 as being
> approved.
> >
> > Can you comment as to whether we can tell him 80W/140 is OK?
> >
> > Regards,
> >
> > Ron
> >
> > -----Original Message-----
> > From: McGlone, Bruce
> > Sent: Thursday, January 13, 2005 2:28 PM
> > To: Cole, Ronald; Vickers, Douglas
> > Subject: RE: Axle / Differential Lubricant for
> > R125NX8 342 Axle
> >
> > Gentlemen;
> >
> > If the motor home's axle/seals are "used to" synlube then,
> by all means, keep it there.
> >
> > I should mention though, that there are no synlubes with
> this viscosity grade. Synthetic gear oils are marketed in (primarily)
> 75W/90 and 80W/140 viscosity grades, with a few 75W/140 oils ($$$$).
> There are a few extended-drain petroleum-based gear oils that have
> been tested and approved by us, including at least one (Chevron ESI)
> that's an 85W/140, but these aren't synthetics. If needed, I can get
> further information on the properties of the customer's gear oil if
> he/she provides a brandname and viscosity grade (Example: "Chevron
> UPM Universal 80W/90").
> >
> > If the customer is happy with their oil, let's advise them
> to leave the same variety in there.
> >
> >
> > Regards,
> > Bruce F. McGlone
> > Tel: 248-435-9929
> > =============
> >
> > -----Original Message-----
> > From: Cole, Ronald
> > Sent: Thursday, January 13, 2005 1:56 PM
> > To: McGlone, Bruce; Vickers, Douglas
> > Subject: Axle / Differential Lubricant for
> R125NX8 342 Axle
> >
> > Bruce / Doug -
> >
> > I got a call today from an owner of a 1986 Blue Bird
> Wanderlodge motor home with subject axle. He had a recent
> 'differential failure' after 122,000 miles and he is getting it
> repaired. He had been > using 85W/140 synthetic lubricant and wants
> our advice on whether it is OK to continue to use this lube when the
> unit is repaired.
> >
> > The R125NX8 carrier is basically an inverted (Rear
> Engine Drive) R155 carrier.
> >
> > Any comments you can provide?
> >
> > I'll address issues with pinion and wheelend oil
> seals.
> >
> > Regards,
> >
> > Ron
> >