Keene Brewer

OK, checked and I am using a 30w oil in my wet clutch on the Chalmers and have been since I rebuilt everything in 1997. I have not had any problems and we have toured that car extensively. Looking at the factory recommendations from 1911, on this model the engine, transmission and clutch all used the same oil although they were separate chambers. Realizing each car is different and may require different oils for different parts i.e., engine,transmission, clutch, differential etc. On this particular car, fluids can seep from the clutch chamber to the transmission and vise versa so using the same lubricate is mandatory. With all that said about this particular application I think your Abbott is probably a dry clutch. Do you know if the Abbott is a 34-40 or 44-50 model? Mine is a model 44 -7 passenger. Do you know what the make of the transmission is?

Thinking about this a little more----IF you find that the clutch is a WET clutch I think you would be safe starting with say a 30W non detergent oil. I have an '11 Chalmers that uses a wet clutch and over the years have tried various oils. I can look next week when I get home what I've used. Too many years ago, too many trials and errors and a terrible memory!

Interesting. I have a 1912 Abbott-Detroit. It has a 50 hp Continental engine and it uses a (dry) multi disc clutch.

Have a Chalmers and have toured with it many years. Would be very much interested in purchasing it if you would consider selling or would be willing to help you with it. Thanks for your consideration.Keene 509-969-9494