Low sulfur fuel and low lubrication are the two main factors that can cause engine failure. Insufficient lubrication is caused by the lack of oil in the engine and a lack of sulfur in the fuel. The risks of these two factors are that they can cause engine failure, leading to a lot of money being wasted on repairs or, even worse, a car accident. FFX contains high-performance lubricants which help improve your engine’s performance and longevity. It is designed to protect against wear and tear while reducing friction.