![]() ![]() A good synthetic will lose only about four percent of its weight when run at 400 degrees for six hours, compared to a 30% loss for a conventional petroleum based oil. Synthetic motor oils experience less "boil off" than conventional motor oils. This helps synthetic motor oil maintain its viscosity grade, enabling it to offer better engine protection and withstand more extreme engine conditions. Full synthetic motor oils resist shear under heavy loads better than conventional oils. As motor oil travels through the engine, some of the additives can be sheared, literally cut in half, by high-speed engine parts, thinning the oil. This is especially important with many of today's overhead camshaft engines. This makes for easier cold starts and provides faster upper valve train lubrication during the first critical moments when most engine wear occurs. Synthetics flow freely at subzero temperatures, pouring easily at -40 or -50 degrees F. This makes it well suited for vehicles that are operated in hot climates as well as heavy-duty, turbocharged or hard-use applications. or higher (some as much as 700 degrees F). The upper limit for most mineral-based oils is about 250 to 300 degrees F. Synthetics can safely handle higher operating temperatures without oxidizing (burning) or breaking down. The special manufacturing process results in lubricants that outperform ordinary motor oils in virtually every aspect: Unlike conventional motor oils that are refined and distilled from crude oil, synthetics are manmade lubricants created from organic esters and other synthesized hydrocarbons. Fractions based on European and North American markets, and the typical differences in crude oil fractionation in the two markets are also shown.Synthetic Oils: What are they and are they worth it? Yield structure of crude oils with increasing density of crude Yields of different crude oil distillation cuts are plotted as function of whole crude specific gravity.Kinematic Vicosity is a fluid's resistance to flow and can be valued as dynamic (absolute) or kinematic. Petroleum Products - Standard Test Methods (ASTM and others) and Specifications An overview of common test methods and specifications of petroleum fuels.Oil Viscosity Converter Convert between commonly used oil viscosity units.Liquids - Specific Gravities Specific gravities for common fluids like acetone, alcohol, turpentine, oil and more.Liquids - Kinematic Viscosities Kinematic viscosities of some common liquids like motor oil, diesel fuel, peanut oil and many more.Liquids - Dynamic Viscosities Absolute (dynamic) viscosity values for some common fluids.Kinematic Viscosity - Online Converter Convert between kinematic viscosity units like centistokes, poise, lentor and more.Kinematic Viscosity - Conversion Diagram Convert between Centistokes, Saybolt and Redwood seconds.ISO Grade Oils - Viscosities and Densities Viscosities and densities of ISO - and equivalent SAE grade oils.Dynamic (Absolute) Viscosity - Converting Chart Convert dynamic viscosity values between units like Poiseuille - Poise - centiPoise and more. ![]() Specific Weight and Specific Gravity An introduction to density, specific weight and specific gravity. Density Converter Online density converter with commonly used units.Gravity Content of nickel and vanadium in more than 120 crudes as function of specific Crude Oil Properties - Standard test methods (ASTM and others) An overview of common test methods and typical ranges of variation of petroleum quality parameters. Temperature Variations in crude oil density are shown as function of temperatur, together with volume correction factors. Centrifugal Pumps - Viscosity Influence Hydrodynamic losses through pumps depends on fluid viscosities.Online API to Specific Gravity calculator. API Gravity API expresses the gravity or density of liquid petroleum products.Absolute or Dynamic Viscosity Online Converter Convert between dynamic or absolute viscosity units - Poiseuille, Poise, centPoise and more.Viscosities Viscosities of products and chemical species at varying conditions.Material Properties Material properties of gases, fluids and solids - densities, specific heats, viscosities and more.Densities Densities of solids, liquids and gases. ![]()
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