Please post your HP and Turbo with the weight of the oil you are using!

 

5w30

 

mods in sig
10w30 synthetic.

 

Redline 10w40

300whp
Road-raced frequently

 

Amsoil 10w-40 in the Spring - Fall, FP Red, and 470WHP. Next oil change I will drop down to Amsoil SSO 0w-30 for the Winter.

 

i use 15w 50 or 20w 50 only drawback is have to let it warm up a bit. Using castrol syntec but was using mobil one which i didnt like. So far royal purple is my favorite. I have a gt35r at about 420whp on pump gas with a light tune

 

Mobil 1 10W-30

Maxed out pump gas stock turbo Evo IX; every mod possible short of a turbo and built engine.

 

Amsoil SS 0w-30.....HP in my sig

 

Amsoil 10w-40
Still running stock turbo
323whp Dyno Dynamics 1.0 CF

 

Amsoil 5W-30 year round. Stock Turbo

 

stock 03 turbo @ 300 whp using 5 w40

 

What are you trying to achieve? any worries with the grade you're using?

 

Factory fill M1 10-30 sometimes the EP

61mm (35r)
450whp pump

Oh and 120k on the stock bottom end FTMFW

 

im on amsoil 10w30 year round

i just have a tbe and a cone filter

 

Brad Penn 20-50. I like to keep my oil pump happy... Been using it almost a year now. Switched from Mobil 15-50. Making 350awhp.