56 GH Power Steering FLUIDS ??????

[bondobilly]

I TRIED THIS OVER ON THE TECHNICAL AREA

Anyone know the 90W multipurpose oil you use in the 56J Power Steering Unit?

Thanks

[doug]

Unless that car is different, most seem to use transmission fluid or power steering fluid in the power steering unit. Just a guess.

[BobPalma]

Bill, I don't know anyone who still markets a straight, 90-weight multipupose gear oil.

The best you'll be able to do, and it will be acceptable, is an 80W-90 multipurpose gear oil with a GL-5 rating, such as Valvoline #VV831. Resist the temptation to use synthetic or semi-synthetic because it would be more inclined to leak out, if it could find a way, and those units are hard enough to seal and keep dry as it is.

CAUTION: Once you have a bottle of that material on your shelf, DO NOT use it in a conventional or conventional with overdrive Studebaker transmission. If you use a mineral (gear) oil in those applications, it must have only a GL-1 rating. The GL-1 rating will not have additives in it that can attack brass in some manual transmission components. [8D]BP

[bondobilly]

I was able to get the GL-5 and some of the other stuff also plus a few years ago someone gave me a quart of real 90W. Thanks for your help the car and I appreciate it.
BG

[64V-K7]

You don't want to put a GL5 spec in any older box with yellow metals for bushings and thrust washers. The GL5 will corrode those metals


Bob Johnstone

https://www.studebaker-info.org

64 GT Hawk
55 President State Sedan
70 Avanti (R3)