The engine of a vehicle is designed to use a fuel with a certain octane number. Therefore, instructions in the vehicle manual should always be followed.
In principle, gasoline 98 can be used by all vehicles. However, it being specially recommended for state-of-the-art engines, with a high compression ratio, and in sports vehicles, it is in these types of engines that its best performance can be realized.
If the vehicle manual does not specifically prescribe gasoline 98, it is possible to choose either of the two types of gasoline, bearing in mind that, from the point of view of product quality and performance, Óptima 95 and 98 have been developed to obtain the maximum benefits in terms of protection, engine cleanliness and reduction of environment-contaminating emissions in order to maintain the initial benefits of the vehicle and to prolong its useful life.