Quote:
Originally Posted by Horsie
So, on my fuel cap (European version) I have: 98 octane petrol!
Problem: in my contry I have only 95 octane (regular) and 100, 100+ octane (no 98).
The price difference between 95 and 100 is almost 10%.
What would happen if I use 95 octane?
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The knock sensor will detect the lower octane fuel and retard ignition timing (and possibly increase fuel a tad). While car will run/adjust, you will lose power and potentially a bit of MPG/KPL.
You have a high performance engine: the 10% fuel premium should not be financially strapping: if it is you got the wrong car.
Give the car the fuel it was designed to run with.
- b