Is 97 gasoline now 98?

[SavannahFitz]

No, 98 gasoline is fuel whose octane rating equals a mixture of 98% isooctane and 2% n-heptane. Below are relevant details about 98 gasoline: 1. Advantages: 98 gasoline boasts "two highs and two lows" - higher anti-knock performance and power output, while containing lower harmful substances and producing less exhaust pollution. 2. Suitable vehicles: Due to its high octane rating and premium price, 98 gasoline is predominantly used by luxury vehicles and is often called "premium gasoline". It's also defined as suitable for gasoline-powered vehicles with engine compression ratios above 11.6. Note: Higher gasoline grades aren't necessarily better; always follow the manufacturer's recommended fuel grade specified in the vehicle manual.

[MariaFitz]

Driving a car means I have to refuel every day. I used to wonder if 97-octane gasoline has now become 98-octane, but later I figured out that's not the case. 97-octane gasoline has an octane rating of 97, while 98-octane has a rating of 98—they are two different grades, just like different models of smartphones. At gas stations, you can usually choose between 92, 95, and 98-octane. 97-octane might still be used in some older gasoline brands, but it hasn’t been replaced by 98-octane. Higher octane fuel has better anti-knock properties and is suitable for high-performance engines. However, if your car’s manual recommends 95-octane, using 98-octane would be a waste of money and might not even provide any benefits. I’ve met people who were confused about this, probably because some gas stations upgraded their labeling, but the fuel itself didn’t change. Using the wrong fuel can cause engine knocking or higher fuel consumption. Always check the label on the fuel pump before refueling to avoid unnecessary trouble.

[McHarrison]

I've been driving a taxi for several years and initially thought that the 97-octane gasoline was upgraded to 98-octane, but that's not the case. The 97-octane is still the old standard with 97 octane rating, while the 98-octane is another high-grade gasoline—just a different level. Both are available at gas stations, and as long as you don't mix them, there's no issue. The confusion might arise because some people saw gas stations changing their labels and assumed the 97-octane was discontinued, when in fact, it's just an additional option. A significant difference in octane ratings can cause engine knocking, making the car run poorly and damaging parts. My neighbor once filled up with the wrong type and spent thousands on repairs. Always follow the manufacturer's guidelines when choosing fuel—it saves money and hassle. Don't get misled by hearsay.

[DelDante]

Having been into cars for years, I've researched gasoline octane ratings. 97-octane gasoline refers to anti-knock fuel with an octane rating of 97, while 98-octane has a rating of 98 - they're independent standards, neither replacing the other. Gas station labeling might change across brands (like 97 becoming 98), but that's just nomenclature, not a fundamental change. Higher octane prevents engine knocking, but regular family cars don't need 98-octane - it's wasteful and less eco-friendly. Understanding these differences keeps your ride smoother.

[SanBarrett]

Having driven for decades, I have plenty of refueling experience. The 97-octane gasoline is still the same 97-octane fuel and hasn't changed to 98-octane. The 98-octane is another higher-grade gasoline, differing mainly in its anti-knock properties. Gas stations display them side by side for your choice. Misunderstandings often arise during station upgrades, with some mistakenly thinking the fuel content has changed. Using the wrong fuel can cause engine knocking and damage, leading to costly repairs. I recommend always checking your car's manual for the recommended octane rating before refueling, rather than relying on hearsay or guesswork.

[ORiver]

I always pay attention to environmental protection when driving. The octane rating of 97 gasoline is 97, and 98 is 98. They are different and not interchangeable. Gas stations provide multiple grades for you to choose from, not because 97 is being replaced by 98. If the octane rating is unsuitable, the car will shake and emissions will increase. I once tried using 98, but my car wasn't suitable for it, so it was just a waste of fuel. Choosing the right octane rating protects the engine and saves resources. Don't blindly believe others' advice to change fuel grades; it's important to check the facts.