Extra additives over regular racing oils Resist breakdown from racing fuel contamination Resists thinning out at high crank-case temperatures Contains a high level of detergents and dispersants Stronger additive film resist sludge and varnish formations Lucas High Performance Synthetic Racing is an excellent product that provides the consistent viscosity needed for precision ET racing. It's blended with an exclusive additive package that includes lubricity agents and anti-seize agents that control drag like a zero weight oil and protect metal like a heavy multi-viscosity oil. It is excellent for normal highway usage. For more specific information on each racing oil please review our product specification sheets.