In summer, high temperatures can significantly impact the performance and longevity of your vehicle. First, engine overheating is a common issue. High ambient temperatures can reduce engine efficiency, and if the engine becomes hot during operation, it's crucial not to add coolant immediately. Doing so can cause the cylinder head or block to crack due to thermal shock. The correct approach is to turn off the engine, let it idle at low speed until the temperature drops to around 70°C, then slowly add clean coolant. Avoid overloading the engine, as this accelerates overheating and increases wear on internal components. Keep the load around 90% to allow for a 10% buffer in case of sudden resistance, such as when climbing hills.
Second, using the wrong type of fuel or lubricant can be harmful. Lubricants thin out when temperatures rise, so it's better to use a higher viscosity diesel oil in summer. Also, choose diesel with a suitable freeze point for the climate to save costs without compromising performance.
Third, tire pressure should be adjusted for summer. High temperatures cause air inside tires to expand, increasing pressure and risking blowouts. It's recommended to inflate tires 5%-7% less than in winter, ensuring the pressure doesn't exceed the maximum rated value.
Fourth, excessive scale buildup in the engine cooling system reduces heat dissipation by up to 40%, leading to overheating, reduced power, and potential damage to the fuel injectors. Regular cleaning of the cooling system is essential to maintain efficiency and prevent serious mechanical issues.
Fifth, the fan belt may loosen in high heat, causing slippage and increased wear. In summer, adjust the tension slightly higher than the standard to maintain proper function.
Sixth, air in the brake lines can affect braking performance, especially in hydraulic systems. Ensure the brake fluid is full, check for leaks, and bleed the system promptly if air is detected.
Seventh, air in the fuel system can disrupt fuel flow, particularly in gasoline engines where evaporation is more likely. Diesel engines can also suffer from air pockets due to leaks. Keep the fuel system sealed and free of leaks. If air is present, stop the engine, purge the system, and ensure the fuel line is completely filled.
Eighth, battery oxidation is a concern in hot and humid conditions. Hydrogen gas and moisture can build up, increasing internal pressure and potentially causing the battery to rupture. Clean the vents regularly and polish the terminals with abrasive material to remove oxidation. Apply grease or vaseline after reinstallation to prevent future oxidation.
Ninth, battery water levels drop quickly in summer due to evaporation. Check the electrolyte level frequently, keeping it about 10-15 mm above the plates. After adding distilled water, monitor the specific gravity to ensure the battery remains in good condition.
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