Thanks again Steve for your answer! It's nice to know that you guys do look at this stuff! I contacted David at Royal Purple about using tranny fluid. It is better with only one draw back. Most tranny fluids can't take heat over 300 degrees. Knowing that turbos have exhaust running through them at 500 degrees and up. The solution is TURBINE OIL! It can take the heat, and it's made for jet engines. So it lubes better and allows your turbo to spool faster. But don't get to thin of a oil, as it will leak by the seals. 20-30W is good. Thank you turbonetics for your help, and thank you all for this site! Paul