Your best off just going with the Ford Full Synthetic that Ford calls for
That's all I run in my SVTF (change it annually) and it's all I ran in my SVTC that I owned for 4 years with no troubles what so ever.
Amsoil Synthetic MTF is great fluid as well.
2004 Silver WRX 300+whp
2003 BMP VW Golf GTI 20th AE #2845/4000
2002 Sonic Blue SVT Focus #1200/4788
2000 T-Red SVT Contour #1089/2150
1998 BDP Subaru Impreza 2.5RS #1595/1695
Last edited by ukfan50; 10-01-2012 at 09:02 PM.