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Cull06 · Apr 11th, 2021, 21:21

So I’ve been running 99 octane for the last 9 months or so since I’ve had the car with a T8 engine.

My last car was a proper performance car and you could tell straight away with the performance and engine if you weren’t using 97-99 Ron

Anyway. Last weekend I had to put 95 Ron in the Volvo when I was in a rush.

And frankly, I can’t feel any difference in performance and the engine certainly sounds and feels the same. I don’t measure mpg so not considering that.

I am genuinely wondering whether I should even bother with the higher Ron with these new Volvo engines and whether they are tuned to be able to use the extra Ron in any meaningful way...

Apr 11th, 2021, 21:21	#60
Cull06 Master Member Last Online: Yesterday 13:18 Join Date: Dec 2019 Location: -	So I’ve been running 99 octane for the last 9 months or so since I’ve had the car with a T8 engine. My last car was a proper performance car and you could tell straight away with the performance and engine if you weren’t using 97-99 Ron Anyway. Last weekend I had to put 95 Ron in the Volvo when I was in a rush. And frankly, I can’t feel any difference in performance and the engine certainly sounds and feels the same. I don’t measure mpg so not considering that. I am genuinely wondering whether I should even bother with the higher Ron with these new Volvo engines and whether they are tuned to be able to use the extra Ron in any meaningful way... __________________ Polestar Engineered XC60 (MY20)