Reference: Manual Transmission Oil

[rob love]

Thanks for the posts Wayne.

I have been trying to do a little research into the gear oil question, and it would seem that if the GL5 has an MT1 designation, it may be OK for the yellow metals.

I also may start a program of changing the gear oils in most of the museum's vehicles, as well as my own. Pretty sure I have been using off the shelf 80W90 in most of my older transmissions, including my Jeep.

Perhaps we can post what oils are available at Cdn tire/NAPA/Walmart that are reasonably priced and fully compatible.

Barry mentioned using straight weight 50 motor oil in the transmissions. On one forum I looked at, they mentioned even going to as low as 30W oil and having satisfactory results.