Which engines benefit more from using 98 octane gasoline?
The optimumoctane number of gasoline is determined by car manufacturers for any specific engine, and such label is usually found on the car’s filler flap. Regardless of the octane number of gasoline, its performance depends on the engine in which it is used. Engines designed to run on 95-octane gasoline will certainly not suffer any consequences if they use 98-octane gasoline, but no significant benefits have been proven either. However, engines designed for 98-octane gasoline or engines modified to increase power must not use gasoline of a lower rating. A long-term practice of this kind can cause damage to the engine, due to the occurrence of engine detonations described above.
