What are the Five Oils, Four Filters, and Three Fluids?
4 Answers
Five Oils, Four Filters, and Three Fluids respectively refer to: 1. Five Oils: engine oil, power steering fluid, transmission fluid, clutch fluid, and brake fluid; 2. Four Filters: oil filter, air filter, cabin air filter, and fuel filter; 3. Three Fluids: windshield washer fluid, coolant, and battery fluid. The functions of engine oil are as follows: 1. Reduce friction and high temperatures; 2. Minimize gas leakage and prevent external contaminants; 3. Protect against contact between water, air, acidic harmful gases, and components; 4. Buffer the pressure rise in the engine cylinder port; 5. Clean dirt generated on the working surfaces of components.
This is a common issue I encounter during car repairs. The five oils, four filters, and three waters are the basic maintenance items for a car. The five oils include engine oil, brake fluid, power steering fluid, transmission fluid, and differential oil—all critical fluids for engine operation. If not replaced regularly, engine wear increases, and braking performance declines. The four filters refer to the oil filter, air filter, fuel filter, and cabin air filter, which prevent contaminants from entering the system and keep the car running smoothly. The three waters are coolant, windshield washer fluid, and battery water. Coolant regulates engine temperature, windshield washer fluid cleans the windshield, and battery water maintains battery life. I recommend car owners check these fluids every 5,000 kilometers and not skimp on replacing filters—otherwise, stalling on the road could be disastrous. In short, these tasks are simple and easy to perform, but neglecting them can lead to costly repairs. Regular maintenance can extend a car's lifespan by over ten years.
As a car owner, I've relied on this maintenance mantra for a decade of driving: 'Five fluids, four filters, three waters' to remind me of regular upkeep. The five fluids are engine oil for lubrication, brake fluid for stopping safety, power steering fluid for smooth control, transmission fluid for gear shifts, and differential fluid crucial in 4WD systems. The four filters include the air filter trapping dust, oil filter purifying lubricant, fuel filter preventing clogged lines, and cabin air filter refreshing interior air. The three waters comprise coolant to prevent overheating, windshield washer fluid for clear visibility, and battery water to maintain charge reliability. I personally check fluid levels quarterly, top up anything low, replace filters biannually, and always verify washer fluid before rainy seasons. Neglecting these could mean breakdowns or accidents – this routine saves money and ensures peace of mind.
The combination of 'Five Oils, Four Filters, and Three Waters' is extremely important. The five oils refer to engine oil for lubricating the engine, brake oil to ensure braking response, power steering oil for easier steering, transmission oil to regulate speed, and differential oil to protect the drivetrain. The four filters include the oil filter to remove metal shavings, the air filter to improve air intake efficiency, the fuel filter to prevent engine clogging, and the cabin air filter to reduce odors. The three waters are coolant to dissipate heat and prevent engine cracking, windshield washer fluid to clean the view and prevent fogging, and battery water to avoid battery aging and failure. Each component interacts with the others; oil leaks can damage parts, dirty filters increase fuel consumption, and lack of water can cause the car to overheat or impair visibility.
