i was just wondering what wieght oil i should use with an oil cooled turbo ls/v-tec i just got done building this motor and i want to make sure that the oil is thick enough but not so thick that it doesn't properly lubricate due to the size of oil orfices.

 

some good ol' 10 dubwa thirtay will do the trick.

 

i was told to run 20w50. anyone else run this? i was going to run either a royal purple or amsoil 20w50

 

20w-50 is some thick ****, like mud. volkswagons use 20w-50.

ive used castrol gtx 10w-40 is all my turbo motors. when my ls was smoking some oil a while back, i put some lucas heavy duty oil stabilizer in with the oil and it really reduced the smokage.

 

I have a 85mm GE sleeved LS-V and am running 20w50 per them (they built it a little loose) Will probably run 10w40 when the kit goes on. Havent had any problems with the 20w50 though just let it warm up real good!