What does SAE 140 mean?
The number “140” refers to the kinematic viscosity of the gear oil at 100 °C. This is within a range of 24.0 – 32.4 mm²/s. The higher the number, the more viscous the oil is. SAE 140 class gear oil is considered to be one of the thickest oils used in passenger cars.
What is GL in gear oil?
Gearbox oils are classified by the American Petroleum Institute using GL ratings. The higher an oil’s GL-rating, the more pressure can be sustained without any metal-to-metal contact taking place between transmission components.
What does GL-5 oil mean?
A GL-5 grade oil has a very high rating for EP (Extreme Pressure) protection. EP gear oils contain additives that prevent metal surfaces from cold welding under the extreme pressure conditions found in situations where boundary lubrication prevails.
What does GL 5 oil mean?
What’s the difference between 80 90 gear oil and 75 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.
What does GL mean in oil?
GEAR LUBRICANT
GL is short for ” GEAR LUBRICANT” API has the following GL classifications: for Gear Oils – GL-1: Oil without EP additive. GL-2: Usually contains fatty materials. GL-3: Contains a mild EP additive.
What does API GL-5 mean?
The designation API GL-5 denotes lubricants intended for gears, particularly hypoid gears, in axles operating under various combinations of high-speed/shock load and low-speed/high-torque conditions. The performance specifications for API GL-5 are defined in the most recent version of ASTM D7450.
What is SAE 90 oil used for?
Transmission Oil
SAE 90 MINERALGEAR LUBRICANT Phillips 66® Transmission Oil SAE 90 is an SAE 90 mineral oil gear lubricant recommended for use in manual transmissions, transfer cases and rear axle assemblies of automotive, farm and off-highway equipment where the manufacturer specifies an API GL-1 gear oil.
What kind of oil do you use in a Castrol transmission?
It is also Castrol’s prime recommendation for all transaxles that include both helical and hypoid type gears. Castrol Universal 80W-90 is recommended in place of SAE 80W-90 GL-4 or 5 gear oil where improved cold shift is desired.
Why choose Castrol axle lubricant?
Castrol is the axle oil of choice for many leading car and transmission manufacturers, ensuring that when you choose Castrol axle lubricant, your rear axle will perform as the manufacturer intended, reducing the chance of handling issues or expensive repairs.
Why choose Castrol syntrax long life 75W-140?
Excellent thermal and oxidative stability provides final drive and differential cleanliness which permits extended drain and decreased servicing. Castrol Syntrax Long Life 75W-140 is a full synthetic final drive lubricant which is suitable for use in axles and final drives in heavy duty commercial vehicles where API GL-5 performance is required.
When should I use Castrol axle EPX 85w-140?
Castrol Axle EPX 85W-140 should be considered for use over the lighter Castrol Axle EPX 80W-90 when ambient temperatures are high (in the vicinity of 30C or above). Axle fluid for use in limited slip differentials where API GL-5 performance is required.