What does it mean when it says at oil temp?
If you see the “AT OIL TEMP” light come on in the dash, that’s telling you your automatic transmission fluid temperature is too hot. Allow the engine to idle while the transmission cools down and let this light turn itself off.
What is the A T oil?
Automatic transmission fluid (ATF) is a kind of transmission fluid used in vehicles with self-shifting or automatic transmissions. It is typically coloured red or green to distinguish it from motor oil and other fluids in the vehicle.
What is ATF oil used for?
Automatic transmission fluid is a critical component of any automatic transmission. Also referred to as ATF, this fluid ensures proper operation, performance and protection of the automatic transmission.
What do the numbers on the oil weight mean?
Oil weight is a term used to describe the viscosity of an oil, which means how well it flows at a specific temperature. The Society of Automotive Engineers (SAE) assigns a viscosity number, or weight, to oil based on its flow at 210 degrees F, which is roughly the standard operating temperature for most motors.
What do the numbers on oil mean when the temperature is low?
The number to the left of the W refers to the oil viscosity when the temperatures are low. The number to the right of the W refers to the oil viscosity at hotter temperatures. If the first number is low, it means that you have thin oil.
What does a W mean on a lubricant?
The “w” stands for winter and indicates that the lubricant in question has a different viscosity, or different flow characteristics, based on temperature. For example, a 5w30 oil weight rating means that on cold start-up — even at subzero temperatures — the oil flows like a 5 weight oil.
What does the word oil mean in English?
Oil′bag, a bag or cyst in animals containing oil; Oil′cake, a cake made of flax seed from which the oil has been pressed out; Oil′cloth, a painted floorcloth; Oil′-col′our, a colouring substance mixed with oil; Oil′er, one who, or that which,…
What does the W on an oil mean?
The “W” signifies “winter,” not weight. Oils first received this “W” designation from SAE in the 1950s. The lower the number preceding the W, the lower the temperature for which the oil is rated.
What do the numbers on the oil mean?
If you live in a tropical area with a lot of heat, you will want this second number to be high because it means the oil is thick. It is good to have thick oil in hot temperatures because it will do a better job of lubricating the engine’s components. In the US, two common motor oils in use are 10W30 or 10W40.
The number to the left of the W refers to the oil viscosity when the temperatures are low. The number to the right of the W refers to the oil viscosity at hotter temperatures. If the first number is low, it means that you have thin oil.
What’s the difference between 10W and 30W grade oil?
At colder temperatures it delivers a 10W-grade oil performance, while at higher temperatures it performs like a 30-grade oil. This provides engine protection at both ends of the temperature spectrum, which is important since engines have to operate in a range of temperatures.