CLEAN FUEL. CLEAN ENGINE. INTENSITY contains two revolutuionary additives. Fuel Saver, a friction modifier that reduces fuel consumption, and Generation V, a special additive that cleans up the engine, eliminating deposits and maximizing efficiency. CLEAN POWER. CLEAN AIR. INTENSITY in your car means intensified engine combustion. This results in optimum engine performance on the road -- at lesser emissions. That's clean air for you and more power for you engine.