The lubricant required for wc t5s is automatic transmission fluid atf. The wc t 5 came out in about 85 i think so your 84 may be a non wc.
Faqs
T5 transmission fluid type. The transmission is quite light with reported weights being between 70 to 75 pounds. Automatic transmissions use a special type of oil called automatic transmission fluid or atf. The t5 transmission was a 5 speed manual transmission that was first produced in 1980 by borg warner. The transmission fluid capacity of the t5 is 28 quarts. Lubricants are specified to provide the longest service life of the gear box as a system. My understanding is that the non world class t 5 use 70 wt gear oil because of a gear difference and bronze syncros but that the world class t 5s use atf fluid.
Fox body mustang transmission fluid capacity. Most t5 transmission models use dexron ii automatic transmission fluid. The t5 is the longest running five speed overdrive standard shift transmission spanning more than 30 years of production. Caution do not mix different bands or types of transmission lubricant. T5 approx 28qts syncromesh fluid. The most important feature of any lubricating fluid is the viscosity.
While there are numerous configurations of the t5 because of the large quantities of t5s produced many parts are interchangeable. Some significant modifications were available beginning around 1985 as the transmission made the transition from the non world class to the world class model. Refer the vehicle owners manual or service manual for lubricant specifications. They both take a bit under 3 qts. I use synthetic atf in all my t5s now and have had no issues wc or nwc. This fluid has a number of duties in the transmission including lubrication cooling and clutch application.
Atf even provides the connection between the engine and transmission through a hydraulic coupling called a torque converter. Do not use gear oil in the t5 transmission since this may damage the blocking ring material. Aod approx 12 qts including torque converter approx 5qts pan and filter service only atf fluid. The t 5s all came with a tag that ids the trans. Oil type for t5 transmission those are factory recommendations but even the factory changed their minds in the mid late 80s and began using atf in nwc. A4ld approx 95 qts including torque converter approx 3qtys pan and filter service only atf fluid.
Wc t5s were introduced in the 1985 ford model year and 1987 chevy model year.
Gallery of T5 Transmission Fluid Type
