Chicago Crew UnderBoss

iTrader: (1)

My brand new MTI 427 C5R lS6 Headed engine has about 925 miles on it now. I want to break in the motor perfectly and give the rings the best chance to seat to get best results with oil consumption.

After 500 miles i changed oil to non synthetic 10W-40 PENZOIL OIL and will probably change the oil again at about 1500 to 2000 miles. I am thinking that i will continue to run 10W-40 motor until engine gets around 4000 miles on it.

Would you change to MOBIL 1 synthetic sooner than this and after how many miles on new engine would you make switch over to MOBIL ONE?

Thanks!

Mike Hoffpauir

Yeah, I'd put synthetic in it at 1000 miles.

SixPak

I agree with the above, but I'd go with redline synthetic instead of mobil 1. I feel it is a superior oil over the rest. it costs a little more and is harder to find, but nothing but the best for my baby. just my $.02

WS6 RULES

Guess I will throw in another $.02, I use Delvac 1, also from Mobile. 5W-40 syn. I use it right from the start in my new LS motors. I put a lot of miles on my cars and they never use any oil. 427 eh? Wow, that must be fun to drive!