Just an observation, no real evidence of anything particularly - just something interesting I noticed.
I've always had a small flat spot at just over 4k RPM, where the car feels like it takes a short breath before carrying on. Maybe half a second, just enough to feel it.
Now the fuel price in the UK has dropped, I've only been using either Shell v-power or Tesco Momentum 99 octane fuel. I've run it for about 400 miles now, with no standard unleaded at all.
Noticed tonight on the way back home this evening that this flat spot has almost gone.
I've always had a small flat spot at just over 4k RPM, where the car feels like it takes a short breath before carrying on. Maybe half a second, just enough to feel it.
Now the fuel price in the UK has dropped, I've only been using either Shell v-power or Tesco Momentum 99 octane fuel. I've run it for about 400 miles now, with no standard unleaded at all.
Noticed tonight on the way back home this evening that this flat spot has almost gone.