Viscosity of oil full#

The letter “S” followed by another letter (API SP) refers to oil suitable for gasoline engines as outline in the above chart. The top of the “Donut” displays the engine oil’s API performance standard.The API “donut” is found on the back label and identifies oils that meet current API engine oil standards. The API/ILSAC Starburst is found on the front label of qualified Engine oil bottles. The ILSAC standards are developed by vehicle and engine manufacturers, oil and additive companies and industry trade associations such as API, ACC, ASTM, and SAE. The institute’s Starburst stamp of approval signifies oils which meet the latest International Lubricant Specification Advisory Committee (ILSAC) standard.

The FA-4 classification was introduced primarily to help maximize fuel economy in over-the-road trucks. Note the FA-4 classification, which pertains only to some 2017 and newer diesel engines. Not all C-series classifications supersede one another. How is diesel engine oil classified?Ĭ-series classifications relate to diesel engines. Oils meeting the latest API classification, API SP, may be used in any engine calling for it or a previous API specification unless otherwise specified. Each classification replaces those before it. The classifications progress alphabetically as the level of lubricant performance increases. The S-series service classification emphasizes oil properties critical to gasoline engines. The API system has two general categories: S-series and C-series. The American Petroleum Institute (API) developed a classification system to identify oils formulated to meet the different operating requirements of gasoline and diesel engines. Engine Oil Classifications How is engine oil classified?

Most engine oils are multi-viscosity, meaning they behave differently at different operating temperatures, good cold flow when the temperature drops and reliable protection once the engine reaches operating temperature. Higher numbers reflect better protection for high-heat and high-load situations. The lower the number, the lower the temperature at which the oil can be used for safe and effective engine protection. Engine oil also changes in viscosity measurement as it is heated or cooled.įor an 5W-20 oil, the “5” is the cold-temperature viscosity rating (The “W” stands for winter indicating its suitability for use in cold temperatures), and the “20” is the high temperature viscosity rating. Fluids that are thin have a low viscosity, and fluids that are thick have a high viscosity. The Society of Automotive Engineers (SAE) has developed a rating system to classify oil viscosity, such as 5W-30, 10W-30 and 15W-40. Conventional engine oil contains additives to help with fuel economy and protection against corrosion and wear meeting basic OEM performance standards. KLONDIKE Synthetic Blend High Mileage Engine Oils are designed for use in passenger cars and light trucks that have exceeded 120,000 kms Conventional Engine OilĬonventional engine oils are usually the most economical option since they require less refinement and re-engineering. Synthetic blend engine oil uses a combination of synthetic and conventional base oils for added resistance to oxidation and wear compared to conventional engine oil.

Viscosity of oil full#

Higher performing engines with higher efficiency generate more heat and full synthetic engine oils help resist heat induced oxidation and deposit buildup inside the engine. Full synthetic oils use higher quality base oils, are processed to remove all impurities, and are customized with higher performing additives compared to conventional oils.įull synthetic engine oils are the preference of OEM’s, making up the vast majority of factory fill engine oils today. Types of Engine Oil Full Synthetic Engine Oilįull synthetic engine oil will deliver maximum protection and performance with superior low and high temperature performance even in extended high stress service conditions.įull synthetic engine oil has gone through a chemically engineered process. KLONDIKE takes no responsibility for product misuse or misapplication. All you need is the make and model of your vehicle, equipment, or machinery.Īlways follow OEM recommendations for fluid viscosity and API service category. You know where the dipstick is but what does the viscosity of engine oil mean? How do you know if it is the correct oil for your vehicle? The LUBE-LINK oil and lubricant database is a great tool to start with before discussing with a qualified mechanic, it allows you to find the right oil quickly and effortlessly. Understanding Engine Oil – Viscosity and Classifications Explained