Add Yahoo as a preferred source to see more of our stories on Google. DENVER (KDVR) — Gas pumps in some Western states look a little different than the rest of the country. Most states have the option ...

America’s biofuel takes advantage of a plentiful supply of corn-based ethanol, but the reason why it's so inexpensive is a ...

You have a choice when you pull up to the pump. Most gas stations have three choices for fuel for your vehicle, based mostly on octane ratings. Which one is the best for your vehicle? A lot of that ...

With all the different engine and combustion theories being tested at the Engine Masters Challenge, it made us wonder about the fuel these powerplants were gulping down. For the 2015 event, we had ...

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, ...

I have a 2016 Toyota Avalon. The manual says that I should use 89-octane gasoline. I like to buy gas at my local Costco store, where the price is always lower than at the neighboring gas stations.