i used castrol rs but found it made my engine noisy.
i see u are using greys what fuel pressure do u have i was told 3psi but not sure i found when i was on boost in first gear then change to second and it was like it was running out of fuel so u had to wait a minuite for it to run back smoothly so i have bougt anew fuel pressure reg with gauge on it so i could see the pressure .it has a brand new 044 pump.......any ideas ?????