Which oil shall be in tranny?

skyjeep50 · Member Joined: Feb 20, 2007 Posts: 606 Location: Illinois

I use Sta-Lube brand 85-90 GL4 gear lube in the transmission and transaxle of my M38 and M38A1. Its available on-line but hasn't been in local stores for several years. The statement above about GL1 oils "intended for manual transmissions operating under such mild conditions" gives me pause to consider GL1 grade. While my vehicles are not used for heavy off-road or load pulling operations, I want the extra protection of a GL4 grade oil.
_________________
1951 M38

GPA · Member Joined: Aug 07, 2008 Posts: 216 Location: Hungary

Brinken,
Give these guys a call: BOOVE AB. They are in Sundbyberg, Sweden Tel.:4687610266
and ask for Gear Oil 90 GL-1

Brinken · Posted: Sun Jan 15, 2017 4:47 am Post subject:

Thanks a lot GPA.
I had a long conversation on the Swedish Jeep Club webpage and one of the guys told me I can get Gl-1 SAE 80/90 gear oil on the Swedish petrol stations OK/Q8, so I went to the local petrol station and found it there, just 10 km from my home.

How did you discover this Swedish company? A search on the Internet, or other knowledge?
_________________
//Jan-Olof
1961 M38A1
1955 Roset/Polynorm trailer
Photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=album453&op=modload&name=gallery&file=index&include=view_album.php

GPA · Member Joined: Aug 07, 2008 Posts: 216 Location: Hungary

Hi Brinken (Jan-Olof) You should not worry about the load carrying abilities of GL-1 spec oil. It is a factory recommended trans oil on some older sports cars with a lot higher load and temperature than faced in the jeep transmissions. It has additives to prevent wear and corrosion. That company (Motul) is selling the gear oil in the recommended single gade SAE 90.
I know about the Swedish distributor because I had some Scandinavian customers here and contacted them at the time.

Brinken · Posted: Sun Jan 15, 2017 7:28 am Post subject:

Ok, I understand. Thanks again for the information
_________________
//Jan-Olof
1961 M38A1
1955 Roset/Polynorm trailer
Photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=album453&op=modload&name=gallery&file=index&include=view_album.php

Beacher425 · Member Joined: May 16, 2010 Posts: 59

http://www.tractorsupply.com/tsc/product/traveller-ford-tractor-all-mineral-90-transmission-fluid-2-gal?cm_vc=-10005

"Traveller All Mineral SAE90 Ford Tractor Transmission Fluid is a high quality hydraulic fluid for use in older Ford tractors.
API Service GL-1
For use in final drives, hydraulic systems and manual transmissions of Ford Tractors manufactured between 1939 and 1952
2 gal.
Guaranteed to meet performance requirements"

Brinken · Posted: Tue Jan 17, 2017 9:34 am Post subject:

Thanks for the information. Fourtunately I have found a GL-1 oil Locally in my town here in Sweden.
_________________
//Jan-Olof
1961 M38A1
1955 Roset/Polynorm trailer
Photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=album453&op=modload&name=gallery&file=index&include=view_album.php


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