Tests show that 76 Guardol QLT holds engine-damaging soot in suspension longer, keeping it away from critical engine parts and significantly reducing the possibility of particles reaching and clinging to metal where they can cause premature engine wear and damage. 76 Guardol QLT continues to set the standards in extending engine and oil life to help improve fuel and oil economy. Guardol QLT features a hard TBN and will keep on protecting an engine's critical parts long after other oils' TBNs have been depleted. A Full Spectrum of Advanced Lubrication Properties and Performance Features 76 Guardol QLT's advanced blend of additives prevents oil thickening, and minimizes carbon deposits, varnish, sludge, and abrasive wear. Special additives also minimize varnish, lacquer, and sludge that form in critical areas of the engine and protect highly stressed parts like camshafts, valve lifters, rocker arms, piston rings, and cylinder liners from scuffing and scoring.
Corrosion inhibitors protect bearings, rings, and the valve train from acidic attack and pitting.
An alkaline reserve additive neutralizes acids that form from combustion. An oxidation inhibitor helps prevent the oil from breaking down at high temperatures. Now, the 76 Lubricants Company continues the tradition with 76 Synthetic Motor Oil, developed through Unocal's exclusive Quantum Leap Technology. Outstanding Oxidation Resistance and Low Volatility for Reduced Oil Consumption and a Cleaner Engine. Heat is a primary cause of oil breakdown, robbing conventional oils of their ability to protect and prevent harmful engine deposit buildups.