
Originally Posted by
Member31410
My car was on race gas pretty much every weekend since the start of 2006 until early this year when I threw my meth injection kit on. The only issue I encountered was fouled up spark plugs right after 5000 miles of service when on leaded race gas. Nothing else has failed on my car after 100K+ miles of race gas use. Note that I also do not have a cat on my car. My dyno pulls still put out the same numbers now just as it did back in 2006 with all that race gas use so I assume all is well. I did replace my O2 sensors at 100K miles but it was just because of the mileage I put on them.