Audi has unveiled a next-generation 3.0-liter V6 TDI engine that blends diesel power with mild-hybrid tech and an electric ...

Dear EarthTalk: I understanding that you can run a diesel car on used cooking oil. Why would I want to do that and how would I convert such a vehicle to do so? The use of vegetable oil for diesel fuel ...

Let's start with a disclaimer: don't put food in your car. If you can eat it or drink it, don't put it in the gas tank or the oil port or anywhere under the hood. Unless we're talking about pouring ...

German carmaker Audi announced the arrival of the EA897evo4 V6 TDI engine for the Q5 and A6, the first to use an electrically ...

Dear EarthTalk: My understanding is that you can run a diesel car on used cooking oil. Why would I want to do that and how would I convert such a vehicle to do so? — Benjamin Crouch, Boston, Mass. The ...

If you like to save gas and don’t mind the smell of French fries, then a couple of Montana Tech students have the car for you. Michele Bay and Glenn Berglund presented their semester project Friday ...