Age old question - 87 or premium

General Honda PCX chat, questions about the PCX, or questions about riding.

Moderator: Modsquad

User avatar
waspmike
Regular User
Regular User
Posts: 490
Joined: Sun Nov 13, 2011 9:37 pm
Location: Bangkok

Re: Age old question - 87 or premium

Post by waspmike »

thunderkat59 wrote:Harley motor drag bike guys use lower octane fuel in their race bikes because the flash point is at a lower temperature and spread out more on the top of the piston.
I think you'll find they use lower octane because it detonates faster thereby giving more power at the risk of a hotter combustion. The higher the octane the slower the detonation.
Post Reply