Hmm, just stocked up on some millers NT 10w-50, will switch to it after running the car in and see how it goes, may be a touch thick.

 

Just switched to Brad Penn 10w-40!

- Sung

 

AMSOIL 10W-40 for the past 11k+ miles since I've been supercharged. Had an oil analysis done after changing it the first time after 2,681 miles (10 months) and it looked great. Just sent in another sample to be analyzed with 4,442 miles on it (8 months).

Here's a link to my fist oil analysis done after 2,681 miles: https://dl.dropbox.com/u/7036956/s2koa.pdf

 

Where did you send it to get analyzed?

 

I use http://www.blackstone-labs.com/. I thought there was another common alternative, but the name escapes me right now.