The trend that’s changing the way America moves is far subtler than any good click-generating headline would have you believe 😁 Electric vehicles are decades away from showing up en masse at country-music concerts, county fairs, and Tractor Supply parking lots 👍 True go-anywhere autonomy will prove as elusive as finding satisfying vegan bacon 👍 The trend we’re really living is the story of smaller engines working harder, in everything from family crossovers to six-figure autobahn barges. Many of these smaller engines, although not diminished in power, are still more powerful than the predecessors. This is thanks to direct injection, turbocharging and variable valve timing, lift and direct injection. 
Moriah Bullard of fuelcards.co.uk
Premium and standard are distinguished mainly by an octane rating, which is the standard measure of engine performance. The octane value of standard unleaded gasoline is around 95. Compare this with a premium fuel such as Shell’s V-Power nitro+ which has an octane number of 99, and it’s clear there is science behind the superior claims. What does all this mean for you car? Simply put, more horsepower is delivered to your engine for every drop of petrol. Premium brands often include extra perks like engine lubrication. The bottom line is that premium fuel is chemically superior. Ronnell Beach amended the above on February 1, 2021. 
Buying gas is one of life’s small
conundrums. We don’t know what they are. numbers on the pump mean
We tend to choose the one most appropriate to our life stage. When we’re starving students, we go for the less expensive 87 octane. If we drive a nice car and we’re feeling flush, bring on the 91! This is a simple way to save money, even though it might sound smart. calculation actually misses hidden costs
You should think about. Before we get to those, let’s clarify what octane levels actually are and what they mean
You can use this information to improve the fuel economy of your vehicle. You need to understand the fuel interaction with your car before you can ask whether higher octane fuel is better for fuel economy. Krystalmarie Feliciano (Suqian in China) provided the insight.