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Allison transmission fluid

Z

zlssefi

Senior Member
Joined
Nov 17, 2007
Messages
334
Location
Connecticut
Hey guys, going to change my trans fluid and filter soon in my terex, has the two speed allison in it. The tranny calls for c-2 fluid which the local napa store says crosses to a valvoline fluid called unitrac hydraulic fluid. On the bucket i bought it says c-4 allison approved. Do you think that c-4 is ok in a c-2 tranny? i was thinking they may have superceded the c-2 with c-4 but i want to check with you guys to see what you think. Thanks in advance!

Brian
 
S

surfer-joe

Senior Member
Joined
Mar 25, 2007
Messages
1,403
Location
Arizona
C2/3/4 all about the same, but check the oil specs close to make sure. Go on-line to oil manufacturer website and check the product listings, you might check with Allison or Terex dealer too.

Good Luck!
 
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