Just curious if any of you other ITR owners have ever had your engine knock when using Mobil 1 supersyn. Either 5w30 or 10w30..

I haven't noticed anything at all, and my engine runs beautifully, doesn't burn any oil. It's at aprox. 14k miles. I'd like to make desicions early in my engines life whether or not I want to continue with using supersyn 5w30. I feel that my engine really likes this oil.

When I first aquired my engine, I was using castrol GTX 10w30, my engine didn't like that stuff. I was hearing a slight ticking from the block (not the valves) after about 500 miles. So.. I decided to go synthetic. Maybe that's what made the biggest difference. I hear absolutely nothing from my engine now, except for valve noise..

If so, please tell me how many miles are on your engine and how hard you drive it. Also, internal mods too.

 

From all the testing being done that I've seen so far, Mobil1 SuperSyn 5w30 and 10w30 are very good oils.