The shop that replaced my clutch when I bought my car said they used Dextron 3 in it and another shop topped of my rear end with conventional fluid when it calls for synthetic in Alldata. No wonder my engine blew after I had a turbo installed nobody I used knew what they where doing. If you wonder why I take credit for the install it's because I've totally redone the install top to bottom fixing everything and learning on the way. FYI the rear mount turbo's intake was run with exhaust flexpipe and heavily kinked to give you an idea of how it was done.