Re: Ultramatic Transmission Fluids

Posted by Owen_Dyneto On 2008/12/25 12:25:12

Type F is readily available, I just bought a case of Castrol Type F. Type FA, used on some Jags and Saabs in the 90s is another alternative. Many people who have changed over to F or FA have noted that it took several hundred miles to elimnate the groans and grunts. The original fluid (Type A) had no friction modifiers and some consider that the transmission "snake oils" that contain them to actually be detrimental to transmission life. Lot's of different opinions and experiences on this topic. As bought my 56 had an occasional groan of the direct drive clutch and I replaced the fluid with Type F and all's been well since.