Answer
Oct 31, 2024 - 06:51 AM
SAE 80 and 75W-90 gear oils differ primarily in their viscosity and performance characteristics. SAE 80 is a single-grade oil, suitable for consistent temperatures, while 75W-90 is a multi-grade oil, offering better performance across a wider temperature range due to its ability to maintain proper lubrication in both cold and hot conditions. The "75W" indicates the oil's winter or cold temperature performance, and "90" represents its performance at high temperatures, making 75W-90 more versatile for varying climates.
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