I agree, any grease or grease like substance should work. I doubt there are any torsion bar cars that get driven a lot of miles in bad weather anymore so the grease probably isn't even a requirement. I have only a very thin film of high pressure grease on the bars in my Coronet. I pull the bars out at least once a year for some reason or another and I don't drive the car more than 1000 miles a year so the grease hardly even knows it has a job to do.