noiseboy72
Member
So with almost 1200 miles per month, I am piling the miles on the old Z. The thing I am finding though is that standard unleaded is giving more power than premium super unleaded. It's mainly noticeable at very high revs - 5500-7000, where with the standard unleaded there's a definite extra "push", but with the super unleaded, it feels much flatter.
Mine's a 2.5SI with sports exhaust and I think a mild re-map. General performance is excellent but high octane fuel does not seem to give any benefit. Anyone else experience the same thing?
Mine's a 2.5SI with sports exhaust and I think a mild re-map. General performance is excellent but high octane fuel does not seem to give any benefit. Anyone else experience the same thing?