1. SAE Viscosity Grade: The SAE viscosity grade indicates the oil's thickness or flow characteristics at different temperatures. For most Polaris 4 stroke ATVs, a 10W-40 oil is recommended. The "10W" refers to the oil's viscosity at cold temperatures, while the "40" refers to its viscosity at high temperatures.
2. API Service Classification: The API Service Classification indicates the oil's performance and suitability for specific engine types. Polaris recommends using an oil with an API Service Classification of SG, SH or SJ. These classifications meet the requirements for most 4 stroke ATV engines and provide adequate protection against wear and tear.
3. Synthetic vs. Conventional Oils: Synthetic oils are typically preferred over conventional oils for ATV engines. Synthetic oils offer superior performance, better protection, and can withstand high temperatures better than conventional oils. However, synthetic oils can be more expensive than conventional oils.
4. Oil Change Intervals: It is important to follow the recommended oil change intervals specified in your ATV's owner manual. Regular oil changes help to maintain engine health and performance by removing contaminants, reducing wear and preventing engine damage.
Always refer to your ATV's owner manual or consult with an authorized Polaris dealer to ensure you are using the correct oil for your specific ATV.