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Auto | Fuel Efficiency | Fuel Consumption

Fuel consumption is a major issue in today's world. Because oil reserves are running low, we will need to cut our fuel consumption or else the cost of gasoline will only go up. Check out these great fuel consumption articles from HowStuffWorks.

What does octane mean?

Adding a chemical called tetraethyl to gasoline can significantly improve the gasoline's octane rating. So what does octane mean? Read on to find out.

Why do some engines use a dry sump oil system?

 Why do some engines use a dry sump oil system?

A dry sump is used in both race cars and some motorcycles (like Harley-Davidsons). What is the advantage of a dry sump? See more »

 What is the problem with MTBE in gasoline?

Why does gasoline contain MTBE, and what is the problem with it? See more »