When it comes to taking care of our cars, we often find ourselves standing in the auto parts aisle, staring at a dizzying array of oil additives. Some promise to boost your engine’s performance, while ...

Every auto parts store in America has a wall of engine and transmission additives that, no matter what's actually in them, promises to fix or rebuild some component or system that needs actual, ...

In today’s cost-conscious times, supplementary engine and fuel additives promise means of cutting motoring costs. We study whether or not they really deliver Words: Rob Marshall Ever since the ...