The Overlooked Rainy Season Car Fix That Could Save You Thousands in Repairs

Most Filipino motorists preparing for the rainy season will check their tires, replace worn windshield wipers and test their headlights before heading out on wet roads. Yet automotive experts say one critical maintenance task is still overlooked by many drivers: inspecting the vehicle’s coolant and brake fluid, two components that play a vital role in preventing breakdowns and avoiding costly repairs during the Habagat season.

The Philippine Atmospheric, Geophysical and Astronomical Services Administration’s (PAGASA) declaration of the start of the Habagat season serves as a reminder that rainy weather brings more than slippery roads and reduced visibility. Frequent shifts between intense heat, humidity and sudden downpours can place added strain on a vehicle’s cooling and braking systems, making routine maintenance just as important during the wet months as it is in summer.

Many motorists assume engine problems are only linked to extreme heat, but heavy traffic and prolonged idling in humid, rainy conditions can also make it difficult for engines to maintain their ideal operating temperature. Without proper care, cooling system issues can develop into expensive mechanical problems that could have been prevented through regular inspections.

Cooling System Often Overlooked

The cooling system works continuously to regulate engine temperature, regardless of the season. If coolant levels are low or the system is not functioning efficiently, engines become more vulnerable to overheating, corrosion and premature wear, especially when vehicles spend long periods stuck in traffic during unpredictable weather.

Experts recommend checking coolant levels, inspecting the engine bay for leaks and monitoring other essential fluids before the rainy season intensifies. Identifying minor issues early can help motorists avoid unexpected roadside breakdowns and more expensive repairs later.

Prestone says its Asian Coolant is designed to protect engines from overheating, rust and corrosion with its 5X Superior Cooling Action and Cor-Guard™ Technology. The coolant is available in RED/PINK, BLUE and GREEN variants to suit a broad range of Asian vehicle manufacturers.

The RED/PINK formulation is compatible with all Toyota, Lexus and Scion vehicles. The BLUE variant is intended for Honda, Nissan and Subaru models, while the GREEN formulation is designed for Isuzu, Suzuki, Hyundai, Kia, Mazda and Mitsubishi vehicles, depending on the model year.

Brake Maintenance Matters

While tires and windshield wipers are often the focus of rainy season preparations, the braking system deserves equal attention. Wet roads can reduce traction and increase stopping distances, making reliable brake performance essential for safe driving.

Brake fluid naturally absorbs moisture over time, which can reduce braking efficiency if left unchecked. Regular inspections and timely replacement of brake fluid can help maintain consistent braking performance when road conditions become more challenging.

Prestone Brake Fluid is formulated for vehicles requiring a DOT 3 specification and is designed to help minimize brake fade, overheating and performance loss caused by water absorption. Combined with routine vehicle maintenance, it helps motorists remain prepared for changing weather conditions throughout the Habagat season.

Preparing a vehicle for the rainy months does not have to involve major repairs or expensive servicing. By paying attention to often-overlooked essentials such as coolant and brake fluid, alongside routine checks of tires, lights, batteries and windshield wipers, motorists can reduce the risk of breakdowns, improve road safety and potentially save thousands of pesos in avoidable repair costs.