What is SAE 80W 90 gear oil?
High-pressure gear oil with mineral oil base. For reliable lubrication and low-wear synchronisation. Is typically used as a manual gearbox oil for road vehicles and construction and agricultural machinery.
What’s the difference between 75 90 and 80W 90 gear oil?
The 80w90 gear oil provides a density of 0.90, while the 75w90 gear oil provides a density of approximately 0.86. Thicker gear oils are more advantageous since they offer better protection than thinner oils. However, thicker oils get clumpy at lower temperatures, thus downgrading efficiency.
Which oil is best for gear?
Top Gear Oils
- Lucas Oil LUC10046 SAE 80W-90 Heavy Duty Gear Oil – 1 Gallon , White.
- Valvoline Flexfill SAE 75W-90 Full Synthetic Gear Oil 1 QT, Case of 4.
- Mobil1 1043611 Full Synthetic Gear Lubricant, 75W-90 Quart 6 PK.
- Valvoline High Performance SAE 80W-90 Gear Oil 1 QT.
- Lucas 10045 Heavy Duty 85/140 Gear Oil – 1 Gallon.
What is the viscosity of 80W 90 gear oil?
Typical Properties
| Mobilube HD LS 80W-90 | 80W-90 | 85W-140 |
|---|---|---|
| Viscosity, ASTM D 445 | ||
| cSt @ 40ºC | 136 | 328 |
| cSt @ 100ºC | 14.5 | 25.3 |
| Viscosity Index, ASTM D 2270 | 105 | 97 |
Can I mix gear oils?
Mineral oils, PAOs and esters may all be mixed together. Only polyglycol type synthetic oils (PG or PAG) may not be mixed with the other lubricant types. They can react together and form gum gels in the casings. Furthermore, they can sometimes be incompatible and immiscible with other polyglycols.
How often should you change car gearbox oil?
Manual gearboxes usually require a gearbox oil change every 30,000 to 50,000 mi (48,000 to 80,000 km). Automatic gearboxes usually have gear oil change intervals of between 60,000 to 100,000 mi (96,000 to 160,000 km). It’s advisable that you change your gearbox oil filter at the same time as your oil.
What is the difference between 80 90 gear oil and 85 140 gear oil?
The viscosity chart rates the 80W90 up to 95 degrees while the 85W140 is rated up to 120 degrees. Don’t want the drain and replace the oil that I just put in. Any thoughts???? Don’t worry about the ambient temperature, worry about the temperature of the gearbox that the oil is running in.
What is SAE oil rating?
The SAE number (also known as “viscosity rating” or “viscosity grade”) is a code to grade motor oils by their viscosity characteristics. The SAE viscosity grade is not the actual viscosity value of the motor oil. Originally, viscosity ratings were monograde — meaning it was only one number (like engine oil SAE 30).
Is SAE full synthetic?
Is SAE Oil Synthetic? SAE oils can be synthetic or otherwise. Having the SAE designation simply means it complies with the SAE standard.
What is SAE stand for?
Society of Automotive EngineersSAE International / Full name
Oil viscosity is very important and is affected by temperature. Therefore the first three letters you need to know are SAE, the acronym of the Society of Automotive Engineers. This society is responsible for establishing a classification system based solely on oil viscosity.
What does SAE stand for in gear oil?
The Society of Automotive Engineers (SAE)
The Society of Automotive Engineers (SAE) has established a numerical code system for grading motor oils according to. their viscosity characteristics SAE viscosity gradings include the following from low to high viscosity: 0 5 10 15 20 25 30.