Higher octane fuel resists engine knock under compression — it is not a cleaner or more powerful fuel for all vehicles. Modern knock sensors in post-2000 engines automatically compensate for ...

Premium gas comes with a reputation. It has a sleek but silent marketing campaign behind it. Some claim it burns cleaner, while others whisper a promise of better performance. So when you're staring ...

Add Yahoo as a preferred source to see more of our stories on Google. Person adding gasoline to a lawn mower - Ana-o/Getty Images Using premium gasoline with a higher octane rating can improve how ...

With premium gasoline prices in parts of Michigan pushing toward $6 a gallon, drivers are facing a familiar question with renewed urgency: Is premium gas really necessary — or just an expensive habit?

We've all seen octane ratings at the fuel pump, and based on the numbers, it's easy to think the higher number is better. From lowest to highest, the types of gasoline are regular, mid-grade, and ...

Keeping your motorcycle in top shape means understanding what it needs to perform at a high level every time you saddle up. From the tires to the engine fluids, and the gasoline you use, it's all ...

Premium and Top Tier gas sound good, but what’s really best for your car — and your budget? In some cases, these types of fuel are indeed better for your car — but for different reasons. Premium gas, ...

It's common knowledge that buying an ex-rental car can be a path to scoring a great deal on your next vehicle. That said, consider that rental cars frequently have more blemishes than normal, such as ...

Fuel comes in different grades based on octane level at gas stations. Only some performance engines require Premium fuel for the best power output, fuel efficiency, and engine function. Are you ...