Biannual SHOULD mean twice a year. Every two years is biennial. But my dictionaries say biannual MIGHT also mean every two years. Probably everybody is so confused about the two similar words that they don't know what biannual means.
According to U.S.A. Today âs âWeekend Gas Gauge,â the current average price of regular gasoline is $4.026 per gallon. A year ago the price was $2.945. What I hadnât realized was that the gap between regular gas and premium gas has also increased.Right now, premium gas is 38.5 cents per gallon more expensive than regular gas.A year ago, that gap was 29.5 cents. year ago the price was $2.945. What I hadnât realized was that the gap between regular gas and premium gas has also increased. Right now, premium gas is 38.5 cents per gallon more expensive than regular gas. A year ago, that gap was 29.5 cents.
In many cases, the answer is probably no -- you'll likely be able to use regular fuel with no noticeable issues except for minor losses in performance and gas mileage. If your owner's manual says that premium fuel is required, then you should do it, but your car won't blow up if you occasionally opt for regular.If your owner's manual says that premium fuel is recommended, then you can use regular gas all the time with no worries.ZIP Code. Change Cancel. This image is a stock photo and is not an exact representation of any vehicle offered for sale.y Doug DeMuro August 2014. The process of buying a car often involves a lot of research, and sometimes your research will reveal that the car you want requires premium fuel. This can be a big disappointment, since premium gas often costs 30 to 50 cents more than regular gas on average.