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I been running 10-30 brad Penn this year, royal purple for several years before with nos, what's suppose to be the Problem?



Synthetic oil is much more resistant to heat and wont burn as easily as conventional oil. Even trace amounts that get by the rings can cause detonation. There have been several threads on the Yellow Bullet about this very subject. I saw a guy make several passes with a Ford at Atlanta dragway that was very fast. I believe it was a drag radial car. He made like 3 passes with the break in oil with no problems. All he did was drain the oil and put in some Royal Purple and hurt it on the first pass with the synthetic oil in it. A lot of poeple chimed in with similar problems and said they dont ever use synthetic oil in a nitrous motor.