DENVER (KDVR) — Gas pumps in some Western states look a little different than the rest of the country. Most states have the option of choosing octane ratings of 87 (regular), 88–90 (midgrade) and ...

The EPA recently announced plans to lower proposed fuel economy standards but automakers are still trying to eke out as much mileage as they can with current technology. As part of this initiative, ...

The owner’s manual of my car — an Audi A6 — says to use 91-octane fuel. But the pump near me has 87, 89 or 94. Since then, I’ve noticed that a lot of cars require 91-octane. Is this a case of where ...

We have all seen it, heard about it, or done it ourselves: Filled up our street cars with race gas in the hope of seeing a performance gain. But what does it really do? If a motor is happy with 91 ...

The debate about the link between fuel and power will probably end at some point, but there is always someone who will have a different opinion on the matter. Fortunately, we live in a world where ...

Aside from the price, have you ever driven into the petrol station and wondered ...

DENVER (KDVR) — Gas prices are fluctuating across the country, and a few states offer a “cheaper” octane option that isn’t found in most places. It has to do with the altitude. Most states have the ...

Ever since high-octane leaded gasoline vanished from the scene, theres been an undercurrent of concern among hot rodders every time they fill up at the pump. For the most part, daily driven hot rods ...