What is the highest octane you can safely run?
Newbie
Joined: Apr 2008
Posts: 21
Likes: 0
From: Westminster, CO
If your car is tuned for 93 octane you will not make anymore power by running 120 octane. So 100, 105, 110, C16, Q16 would be no different than 93 octane if you're on a 93 octane tune and you dont touch the boost. The only thing running high octane levels (without a tune / turning up the boost) will have an affect on is your pocket book.
The only way to get a gain out of higher octane fuels is to turn up the boost and be tuned for that level of octane. Thats why a lot of people have separate pump and race gas maps.
The only way to get a gain out of higher octane fuels is to turn up the boost and be tuned for that level of octane. Thats why a lot of people have separate pump and race gas maps.
Newbie
Joined: Sep 2007
Posts: 35
Likes: 0
From: Wakefield
Think EVO's in the UK are equipped for 97-101 fuel as thats what they use in japan, probaly no less than 98 there, using standard 95 in the UK would destroy most evo engines quickly.
