Drop box/ rear end oil?

[Tom Y]

Is anyone running straight 140W GL5 gear oil? That is what my book calls for but have yet to find. I am hoping to find, other ideas? Thanks 

[luvrbus]

You can buy 140GL at Auto Zone,I ran 85/140 synthetic in my Eagle for years never a problem a little pricey though it would hold over 4 gals   

[Tom Y]

Thanks, I will take a look there. Hoping to pick up a 5 gallon pail, but no luck so far.

[Dave5Cs]

Tom try any Tractor supply or tractor company near you.

[B_K]

Most any Oil Distributor should stock it or can get it for you pretty easy. (if not they ain't much of a distributor!)
  BK 

[Tom Y]

I have not found any 140w GL5, even tried auto zone today?

[eagle19952]

I have not found any 140w GL5, even tried auto zone today?

https://www.walmart.com/ip/Super-Tech-85W-140-High-Performance-Gear-Oil-1-Gallon/16795066?wmlspartner=wlpa&adid=22222222227017563167&wl0=&wl1=g&wl2=c&wl3=77514546048&wl4=pla-107410887888&wl5=1026481&wl6=&wl7=&wl8=&wl9=pla&wl10=8175035&wl11=online&wl12=16795066&wl13=&veh=sem

[Tom Y]

I have seen the 85/140, 75/140 oil. I was hoping for straight 140w per the manual. Maybe if MCI redid the manual they would spec 85/140.

[eagle19952]

I have seen the 85/140, 75/140 oil. I was hoping for straight 140w per the manual. Maybe if MCI redid the manual they would spec 85/140.

i cannot imagine 140wt lubricating anything in sub zero temps...at least not for a few miles.

is 140 the only listed ?

[Tom Y]

The book calls for 140w at zero F and above 90w below zero.

[brmax]

I would be interested if anyone and their 90's model mci have a listing for the gear lube spec.
That may shed some light
Floyd

[luvrbus]

I will check the Eagles manual when I get home I don't recall Eagle specifying 140W but I could be wrong,  it is the same Rockwell dropbox on MCI and Eagle fwiw   

[Tom Y]

The 90s models did not run a drop box. Thanks, I would like to know what Eagle spec was.  I was told by a converter  that Prevost did something to keep the noise down on the drop box. I would think just insulation, but have not seen a box from one. Anyone know same box?

[brmax]

Yes i agree no drop boxes, Many times the drop boxes have
more transmission related components.
So in all the cussin n discussin does the manual say GL5.
Or could it be gl4, it seems all the additives or technolectalons the
multi-weights are here to stay.
I think about that time in the 80s was the last of many fleet lube charts.
And it became an over fulltime job keeping it straight with the equipment.
Though in the coach fleet it was quite consistent and may have been easier. 
Looks like were here nowadays seeing the super cracked oils. Keep an eye on it

Good day
Floyd

[luvrbus]

The 90's model what ? Eagle's ran the drop boxes till the end,a drop box doesn't give problems if the maintenance is kept up, it's just a transfer case