Torco 108 Purchase at Firebird.
I put 5 gallons of Torco 108 Unleaded in my empty tank last night at Firebird. Did two runs.
I noticed some detonation on the drive home on the 23 degree race tune?
I just hope the car was not detonating down the track.
My octane requirement for 20 PSI with 23 Degrees would be safe with 100 octane. Very Safe with 108.
I placed the 16 degree tune back in and the detonation is gone.
This is obviously a fuel quality problem.
I never had any issues with VP 109.
I will only be using VP race fuels in the future.