Hello,

I am planning to put a comptech SC on my car. At the moment i am using 5W-40 Amsoil for engine oil. My mechanic has propose me to use 20W-50 when i put the SC. Can you please tell me if this is the preffered viscosity when you put a SC? Which viscosity are you guys using??

Thanks
Chris

 

10-40 redline but im turbo

 

10w-30 redline,11.8 psi CTSC with all stock internal and exhuast.

 

Any XXw-30 synthetic will do.

 

The tech guys at Amsoil recommended the 5W-40 European synthetic when I emailed them and asked. I'm running it now.

 

In the summer, I prefer a 10W30 synthetic...higher if I am going to the track. In the winter you can go lighter.

 

just wondering...what kind of numbers are you putting down? I dropped my car off yesterday to get tuned at King Motorsports with a 12psi pulley on...

ohh and I am running 5w-30 Mobil1 right now. Its like 20-30 degrees out in the morning. Ive been putting all of my new parts on my car the past two weeks So i didnt want any issues. I normally run 10w-30 Mobil1 in the summer.

 

I am going to tune it at 9psi pulley! Bone stock F20C engine

 

x2

 

That's what I am running with a Kraftwerks SC.