Originally Posted by M3Lion
detonation? Like the cars gunna blow up
no detonation is premature fuel burn inside the cylinder. basically, unburned fuel and air inside the cylinder can ignite under pressure and heat outside of the normal burn that occurs with each stroke. it can cause damage because of the added pressure detonation puts on the rods and crank. when he's talking about detonation of street gas he's talking about gases with lower octane ratings. the higher the octane rating, the more efficiently and evenly it burns, the less likely chance of detonation.