Yes, first find out what the manufacturer recommended. Then decide.

Redline MTL in my track car 5 speed, no problems with about 3x more power than stock rating through it for a few thousand miles on the track.

Point being whatever you use, my recommendation is make it synthetic.

Last edited by R-Bo; 12/20/2014 4:29 PM.

R-Bo

1959 Apache 1/2 ton Big Window, Short bed Fleetside (under reconstruction)
1966 GMC 305V6 in the family