Yes. But in doing so, you will not notice a difference in the way the car runs. The higher octane rating is simply its resistance to pre-ignition. It doesn't increase your fuel economy. All octanes have the same amount of energy in the fuel.
Yes.
When you mix regular unleaded fuel and unleaded plus fuel in a gas tank it results in a mixture of fuel with an octane rating higher that regular unleaded fuel but lower than the octane rating of unleaded plus fuel.
Car not getting gas Buick century 1994?
how to replace the tether gas cap on a 1998 Buick Century?
A 2002 Buick Century can hold up to 15.5 gallons of gas. The 2002 Buick Century gets 21 mpg on both highway and city roads.
Yes, you can use regular gas in your Buick Century. Most models are designed to run on regular unleaded gasoline, typically with an octane rating of 87. However, always check your owner's manual for specific fuel recommendations, as using higher octane fuel than required won't necessarily improve performance or fuel economy.
17 gallons
18 gallons
17 gallons
17.5
15 gallons
17.50 Gallons