What is the viscosity of gearbox oil?
Manual Gearbox It’s much thicker than motor oil, with an average motor oil being 5W/30 and the average gear oil being 75/90 (see this article for in depth explanation of oil viscosity index). While 80W-90 gear oils can be an attractive option because of low initial cost, when total cost is considered, 75W-90 is a smarter option. It offers efficiency and protection, as well as longer drain intervals, that reduce maintenance costs.So, 80W90 gear oil is thinner at both cold and hot temperatures compared to 85W140 gear oil, which is thicker and more suited for extreme load conditions.W30 is suitable for operating temperature between -25°C and 25°C, and 5W40 has a range of between -25°C and 35°C. In terms of oil flow, 5W30 has greater flow than 5W40. However, for providing higher pressure, 5W40 is superior. Out of the two engine oils, 5W30 is lighter, offering better fuel consumption.High viscosity motor oil like 15W, 15W-40, or 15W-50 are particularly good for application in high-mileage and older engines. They provide better engine protection at high temperatures and improve oil life, hence, drain intervals.
Is ATF oil the same as gear oil?
A straightforward answer would be No because gear oil and transmission fluid target different types of transmissions or mechanical environments. Gear oil is a lubricant for manual transmission while transmission fluid is a lubricant for the automatic transmission of semi-trucks and other heavy and light-duty vehicles. Yes, there is a difference Gear oil is specifically designed to protect, lubricate, and cool gearing systems. Engine oil lubricates the bearings and protects your car’s engine from the additives in gasoline. In addition to the differences in lubrication, the two types of oil target different parts of the engine.It can not only reduce performance but also damage your gears. To conclude, GL4 and GL5 gear oils are for different types of gears and performance requirements. Make sure to use the proper kind of oil for your application. You should consult your owner’s manual for the manufacturer’s gear oil recommendation.Gear Oil GL-5 are automotive gear lubricants suitable for API GL-5 applications. Formulated with mineral base oils in combination with a selected additive system, Gear Oil GL-5 is available in viscosity grades SAE 80W-90 and SAE 85W-140.Different Gear Oil Ratings Think of GL1 as a basic gear oil for light-duty applications. But GL5 gear oil is for hypoid gears that work under high stress and temperatures. An example is modern vehicles with high-performance axles. Think of it as a high-performance gear oil for heavy-duty applications.
Is 80W-90 gear oil the same as engine oil?
Gear oil differs from engine oil. While many motorists may assume SAE 90 gear oil is thicker than SAE 40 or 50 engine oil, their viscosities are the same, as this gear oil viscosity chart shows. One major difference between the two are in the additives they use. Do not mix State Formula SAE 85W140 Gear Oil with any lubricant other than a SAE 85W140 multigrade viscosity oil. Do not mix State Formula SAE 80W90 Gear Oil with any lubricant other than a SAE 80W90 viscosity oil. Do not overfill gearboxes.Lucas Oil SAE 85W-140 Gear Oil is stable under high-torque and high temperature conditions but remains fluid at extremely cold temperatures to ensure excellent lubrication no matter the weather.
Can I use gear oil as engine oil?
Gear oil and engine oil are not interchangeable. Gear oil is specially designed for transmissions, differentials and gear systems, and using it in your engine can lead to serious damage. So, in the end, conventional and synthetic oils are comprised of the same, compatible components – it’s just that the components in synthetics are much higher quality. While you can safely mix synthetic and conventional oils, you’re doing nothing more than diluting the performance of the synthetic oil.Compatibility with Older Engines: Some older engines may not be ideal for full synthetic oils, as these oils could expose pre-existing leaks or interact differently with certain seals. If you’re considering switching, it’s wise to check your vehicle’s manufacturer recommendations or consult a mechanic.In conclusion, while it’s generally safe to mix different brands of engine oil, do so with caution. Stick to oils with similar viscosity grades and avoid mixing different types or using oils with conflicting additives.In conclusion, while it’s generally safe to mix different brands of engine oil, do so with caution. Stick to oils with similar viscosity grades and avoid mixing different types or using oils with conflicting additives.