Add Yahoo as a preferred source to see more of our stories on Google. Are you overpaying for premium gas or getting suboptimal performance out of your car because you're feeding it the wrong fuel?

Tugboat was my family's 1987 Dodge Caravan, which faithfully served us for years until its transmission finally exploded one lovely summer afternoon. Her 3-liter V6 was electronically fuel-injected, ...

All Subaru WRX models (which stands for World Rally eXperimental) are turbocharged and have been ever since the genesis of this rallying-inspired Subaru model's first generation in 1992. A ...

Other people who see legitimate value in E85 are performance enthusiasts. E85 has an octane rating of 100+; therefore, engines tuned for this level of performance can utilize higher compression ratios ...

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 ...