it is silly to install tune for 93 octans and use fuel with less number, high octane tune make spark plug occurs sooner because high octane fuel is harder to ignite and flame spreads(ionisation)slower but it burns by same speed and have same energy as lower octane number fuel, is it clear?
it is silly to install tune for 93 octans and use fuel with less number, high octane tune make spark plug occurs sooner because high octane fuel is harder to ignite and flame spreads(ionisation)slower but it burns by same speed and have same energy as lower octane number fuel, is it clear?
Yes that is correct. If you're going to run a 93 octane tune you better be running 93 octane (or more) fuel.