JM 35 Sedan
Well-known member
I did an experiment several years ago by mixing JDCH grease and the gear oil I normally use in the transmission and rear of my '35 fordor. It did initially mix well, and this mix did not separate during the time I kept it in a small jar on my work bench, probably a couple months. I did this experiment when I started using JDCHG in my steering box because I knew I could not drain all the existing oil out of the box.