lol so which one are people using......? im guessing the one i linked to which is the same one as this

http://www.redlineoil.com/product.aspx?pid=52&pcid=9




crikey...... transmission fluid woes for real, lol

 

Redline Racing Fluid http://www.redlineoil.com/product.aspx?pid=52&pcid=9
This is the fluid you linked to in your post above. When people on this board refer to "Redline fluid" or "Racing fluid" or "Type-F" they are usually referring to this fluid. This is a high quality synthetic fluid and more importantly, it does not include any friction modifiers (FM). Some of the experts on this board discovered that FM causes wear on the transmission clutches and this wear can be seen as metalic material on the magnetic drain plug. Acura's OEM fluid, Honda ATF-Z1, includes a ton of FM. All of this FM intentionally causes the clutches to slip for passenger comfort, but this results in transmission wear. Members have shared their experience and usually note that there isn't much of a difference in comfort so there really isn't any downside to this.

Redline Lightweight Racing Fluid http://www.redlineoil.com/product.aspx?pid=137&pcid=9
This is identical to the above fluid, but with a lower viscosity so it is a thinner formula. The Racing Fluid has a higher viscosity than the OEM Honda ATF-Z1 fluid while the Lightweight Racing Fluid has a lower viscosity than ATF-Z1, so some members (myself included), especially those in colder climates, have chosen to blend the Racing Fluid and the Lightweight Racing Fluid to end up with a viscosity that is more similar to the OEM fluid.

Redline D4 http://www.redlineoil.com/product.aspx?pid=51&pcid=9
Redline's D4 fluid is designed to be a replacement for Honda's ATF-Z1 fluid and includes friction modifiers (FM) just like the Z1 does. Many on this board feel that this D4 fluid is significantly better than the OEM fluid, but the general feeling is that the Racing Fluid or Lightweight Racing Fluid (or a blend) are better for the transmission and result in less clutch wear since they do not have any FM.

I am not an expert on this matter, but am summarizing the information that I have learned by reading posts on this board for the past couple years. I hope this helps.

 

^organized explanations.

well done, sir.

 

Excellent summary jhumbo

 

Good summary. If only Redline had made a more normal viscosity since most ATFs are in the 7cSt range. That's why Amsoil's "Super Shift" is a good alternative to Redline. It's a type F and the same viscosity as Z1 so no mixing is required.

This is also at 100c. A few degrees hotter or colder and you're way out of the advertised viscosity.