Reply To: Trans. and axle oil viscosity

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I recommend the use of an ‘old’ NON-EP lubricant in the Overdrive transmissions. I have been using this for many years in all of my cars with Borg-Warner O/D transmissions. This thinking originally came from problems with a B/W overdrive sticking in one of my non-Pierce cars long ago. The change solved the problem.

When I purchased our 1936 1601 sedan in 1995 I was given the same advice by George Peckover, the former owner, former PAS Technical Director, and something of an authority on lubricants. It is not generally available in stores, but I can purchase Quaker State 90/110 Non-EP in 5 Gallon quantity through the local oil distributor.

I use a modern 140 in the rear axles of both the 1601 and 1247.