The GMMG Registry Forum

Posted: **Thu Sep 17, 2015 1:28 pm**

I was visiting with Tom @ Parks Automotive & he said Racing Fuel is real hard on O2 Sensors.

He said it messes them up & suggested NOT using Racing Fuel.

What do you guys think?

Thought I'd share this. Jim

Posted: **Fri Sep 18, 2015 7:24 pm**

Matt Murphy told J.D. & I to never run high octane racing fuels. Engines were build & tuned for 93 octane, which was what they had in GA when the cars/engines were built.

The GMMG Registry Forum

O2 Sensor & Racing Fuel