What does API grading refer to?

The service rating of passenger car and commercial automotive motor oils is classified by the American Petroleum Institute (API). The program certifies that engine oil meets certain Original Equipment Manufacturer (OEM) quality and performance standards.

What is API in oil specification?

American Petroleum Institute (API) The American Petroleum Institute (API) represents all aspects of America’s oil and natural gas industry, having more than 625 corporate members from all segments of the industry, from the largest major oil companies to the smallest of independents.

What does the W in viscosity grade eg 5W 30 stand for sp2?

SAE viscosity grade. Resource conserving (specifies oil meets fuel economy requirements) What does the “W” in viscosity grade (e.g. 5W-30) stand for? Winter.

What is the difference between API SM and API SL?

API or american petroleum institute certifies the oil grades which are updated after every vehicle gets a upgrade according to emission standards so a API SL is a older grade used primarily in BS3 compatible vehicles compared to API SN which is being used for latest BS6 compatible engines so if u use a older grade like …

How do you read oil grades?

In a 5W-30 for example, the number before the W describes the viscosity of the oil at low temperatures. The lower the number, the thinner the oil and the better the oil’s cold temperature/ cold start performance. The number after the W describes how thick the oil is at the engine’s normal operating temperature.

How do you read an API rating?

The current API Service Classification is SN The suffixes (0, 5, 10, 15 and 25) followed by the letter W designate the engine oil’s “winter” grade. Look to your owner’s manual. It specifies the viscosity grade required for your car’s engine. Today, the most common grades are 5W-30 and 10W-30.

What is CC grade oil?

CC — Diesel Engine Service Oils designed for this service provide protection from high-temperature deposits and bearing corrosion in these diesel engines and also from rust, corrosion and low-temperature deposits in gasoline engines. These oils were introduced in 1961.

What is API SG grade oil?

API Service Category SG was first introduced in 1989 for use in gasoline engines and is not suitable for use in engines introduced after 1993. API has discontinued licensing engine oils against API SG and it is considered to be an obsolete specification.

What does the W mean in oil?

Winter
The “W” that you see on oil labels stands for the word “Winter” because this portion of the label shows the viscosity level of oil when an engine is cold. Motor oil that is thinner can flow more easily and faster. This is important because when you start a cold engine, the oil needs to lubricate the equipment quickly.

What should you rely on to determine when to change your oil sp2?

In many modern cars, your best bet is to rely on the vehicle’s oil life monitoring system to let you know when it’s time for a change. Your owner’s manual is the best place to look up your maintenance schedule. Oil changes were once dictated by miles driven.

What is API SL JASO MA2 meaning?

JASO MA2: This is a higher standard specification for modern motorcycles. These oils are suitable for use in motorcycles that have catalytic converters in the exhaust system. JASO MB: This is a lower standard specification for scooter engines.

What does API stand for in motor oil?

High temperature deposit protection for pistons

  • Better sludge control
  • Better seal compatibility
  • Aftertreatment compatibility

    • What are API oil grades?

    – Allows for a smaller engine to make roughly the same horsepower as a larger engine – These engines can present problems with low speed pre-ignition (LSPI), leading to catastrophic damage – GF-6 and API SP oils are formulated to help protect against LSPI

    What do oil grades really mean for your engine?

    When you see a W on a viscosity rating it means that this oil viscosity has been tested at a Colder temperature. The numbers without the W are all tested at 210° F or 100° C which is considered an approximation of engine operating temperature. In other words, a SAE 30 motor oil is the same viscosity as a 10w-30 or 5W-30 at 210° (100° C).

    What are the grades of motor oil?

    – Conventional or mineral oil is the most affordable option and is available to purchase in bulk at most auto stores. – Synthetic blend or semi-synthetic motor oil is a pricier option but tends to last longer than mineral oil. – Full-synthetic or fully-synthetic motor oil is the priciest option.