Has Mobil 1 changed???

[Jeff H]

Norm, I decided to check my 2000 Camaro SS since it runs Mobil 1 but I have a pretty bad head cold right now and can't really smell much of anything. It looks a little dark with around 1500 miles on it, but then the LS1 is a high compression motor and runs at a pretty high temp stock. I need to get that lower temp t-stat put in when we break out of the cold weather for sure. I used to run the Castrol Syntec in my old 91 454SS pickup that had a newer crate motor in it. I've never seen oil look so clean after 4000 miles of driving and never used a drop with that motor. But that motor was around 7.9:1 compression so that probably makes a difference.