Exempel på octane

• A research octane number of 65 and volatility were low compared with modern fuels but probably suitable when considering the design of the flathead engine.

• Volatility may have been low, but not such that the motor could not be operated, and the octane rating appears suitable for the engine.

• By continuing arcing in liquid nitrogen with graphite electrodes, it is possible to accumulate the reaction products into the octane trap.

• The products formed in the electric arc were hence forced to pass together with nitrogen into the octane solvent outside the reactor, and they were then trapped into the solvent.

• The use of methanol as an octane improver is similarly uneconomic when compared to conventional improvers.

• It seems that lead is the most efficient, the cheapest and the most plentiful octane improver.

• It avoids the inefficiency of converting naphtha to high octane.

• This plant was designed and built during the war to produce high octane aviation fuel from gas oil.

• The research octane numbers in this specification have remained unchanged with the reduction of the lead alkyl content.

• Once growth has started they are very high octane fuel in the engine, but something else is needed to start the engine.

• Fuel consumption increases with every unit reduction of octane number.

• To raise our petrol even to 75 octane would mean a loss of output.

• If there is no additive, some other way of putting up the octane rating must be found.

• It did not mean a thing until it had the octane rating put on it.

• Are they aware that high octane petrol is one of the main sources of lead in blood?