Normal gas
The Spanish phrase 'gasolina normal' translates to 'normal gas' in English. It is a form of gas used commonly in vehicles and is often the basic or standard option available at gas stations. The term is generally used to contrast with 'gasolina premium', which would translate to 'premium gas', another type of gasoline which is often more refined and may offer certain benefits such as improved engine performance or longevity.
I need to fill the tank with regular gasoline.
In this sentence, the Spanish phrase 'Necesito llenar el tanque con gasolina normal' is used to express that someone needs to refuel their vehicle with regular gasoline.
Regular gasoline is cheaper than premium.
This sentence translates directly to 'Regular gasoline is cheaper than premium', which is a comparison of the costs of regular and premium gasoline in Spanish speaking countries.
The car runs better with regular gasoline.
Translated, the sentence 'El coche funciona mejor con gasolina normal' conveys the idea that someone perceives their car operates best when it uses regular gasoline.