BLOG How Seasonal Changes Impact Your Engine: Essential Maintenance Tips May 30, 2025

As the seasons change, so do the demands on your vehicle's engine. Whether it's the blistering heat of summer or the freezing temperatures of winter, different weather conditions can significantly impact engine performance. At Jon's Repair Service, we understand how vital it is to keep your engine running smoothly year-round. This is why we’ve compiled essential maintenance tips to help you navigate seasonal changes and maintain engine efficiency.

When the temperatures drop in the winter, your engine can face several challenges. Cold weather can cause engine oil to thicken, making it harder for the engine to start and increasing the risk of wear due to reduced lubrication. To combat this, switching to a lower viscosity oil during the winter months can be beneficial. Synthetic oils, which remain fluid at lower temperatures, are an excellent option to consider.

Cold temperatures also impact your car battery, sometimes rendering it unable to hold a charge. A well-maintained battery is critical in the winter, as cold weather increases the demand on your engine to start. Make sure to check the battery's charge and replace it if it's over three years old. Regularly testing the battery's health can save you from inconvenient surprises.

Moreover, winter poses an increased risk of coolant freezing, leading to engine overheating and potential damage. Ensure your coolant is mixed with the appropriate ratio of antifreeze and water—typically about 50/50—to prevent it from freezing or boiling over. Checking and maintaining this ratio can be crucial in preventing costly engine repairs.

As we move into summer, high temperatures introduce a different set of challenges for your engine. The intense heat can cause the engine to overheat if the cooling system is not functioning optimally. Regularly inspect the cooling system, paying special attention to the radiator, hoses, and coolant levels. Flushing the radiator and replacing the coolant can help prevent overheating.

Oil remains crucial in the summer as well. Hot weather can cause engine oil to thin out, affecting its ability to lubricate engine parts. Make sure to check oil levels frequently and consider using a slightly thicker oil if you live in an extremely hot climate. Maintaining proper oil levels is essential to ensure your engine does not seize during high temperatures.

Furthermore, air conditioning systems are heavily relied upon during summer, putting extra strain on your engine. Regular inspections of the air con system, including the compressor and refrigerant levels, can ensure it runs efficiently without compromising engine performance.

Proper tire maintenance is often overlooked but is equally important. As temperatures rise or fall, air pressure in your tires can change. Ensuring that your tires are correctly inflated can improve fuel efficiency and engine performance, while also extending the life of your tires.

To conclude, being proactive with seasonal engine maintenance can effectively mitigate weather-related issues. By following these essential tips, you can enhance your vehicle's performance, extend its lifespan, and reduce the need for costly repairs. At Jon's Repair Service, we are committed to providing our customers with the best engine repair tips and services to keep their engines running smoothly, regardless of the season. Don't hesitate to reach out for expert advice or to schedule a maintenance check. Your engine's health is our priority.