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.
What's the price difference between standard and premium fuels? According to the petrolprices.com, the average price of a litre of unleaded petrol is currently 103.49p per litre, with super unleaded costing over 11p more at 114.05p per litre. Diesel drivers can expect to pay Â£104.01 per litre of standard fuel, and Â£116.94 per litre of premium. And petrol users should be aware that standard unleaded is often marketed as âpremiumâ, which could lead to some confusion. As a rule of thumb, it's generally 'super' for petrol and 'premium' for diesel.