Redline is great stuff but I would not use MTL in a DMC 5 speed. My remembrance about MTL when I used it in an SHO was it is designed to be used where an auto trans fluid was OEM in the manual transaxle. I don't believe MTL meets GL-5 specs called for in the DMC. The DMC should use 75w-90. I prefer synthetic because it is a far superior lubricant, a heat reducer, and seems to be smoother, especially when cold. Harold McElraft - 3354 --- In dmcnews@xxxxxxxxxxxxxxx, "Dave Swingle" <swingle@xxxx> wrote: > RedLine is a brand of very expensive "boutique" lubricants - mostly > --- In dmcnews@xxxxxxxxxxxxxxx, "michael townsley" <townfour@xxxx> > wrote: outside of Valvoline synthetic, what is > Redline...is it > > a 90 weight oil? What weight of lube oil should I use? > > > > Michael W. Townsley > > townfour@xxxx > > > >