Why don't supercars use AWD?

In car maintenance, common mistakes made by car owners include overfilling engine oil, neglecting air filter replacement, incorrect use of coolant, and improper tire maintenance. Overfilling engine oil increases engine load and causes carbon buildup; the correct practice is to maintain the oil level between the high and low marks on the dipstick. Air filters should be replaced regularly based on driving conditions—for urban driving, it is recommended to inspect them every 10,000 kilometers, and more frequently in dusty areas. Coolants from different brands must not be mixed, as this accelerates component wear; always use the manufacturer-specified product as outlined in the manual. For tire maintenance, tire pressure should be adjusted to the manufacturer's recommended levels; incorrect pressure (either too high or too low) compromises safety and increases fuel consumption. It is advisable to check tire pressure monthly and rotate tires every 5,000 kilometers. Additionally, avoid washing the car under direct sunlight to prevent paint damage; when applying wax, use straight-line motions. Do not lubricate bolts and nuts, as this may cause them to loosen. Regular comprehensive maintenance at authorized service centers can significantly extend the vehicle's service life and reduce maintenance costs by up to 30%. Understanding these key points helps avoid 80% of common maintenance errors, ensuring optimal driving safety and performance.

A reasonable car maintenance interval should be comprehensively adjusted based on oil type, driving habits, and environmental conditions. Mineral oil is recommended for replacement every 5,000 kilometers or 6 months (whichever comes first), semi-synthetic oil can be extended to 7,500 kilometers or 8 months, while fully synthetic oil is recommended for replacement every 10,000 kilometers or 12 months. Turbocharged or high-performance vehicles should prioritize fully synthetic oil with a shortened replacement interval of 8,000-10,000 kilometers. For frequent short-distance trips (single trip <5 km), prolonged idling in traffic, or extreme climates (e.g., high temperatures or dusty environments), the interval should be reduced by 20%-30%. Oil should be changed if the vehicle remains parked for over 3 months, even if the mileage threshold hasn't been reached. The oil filter must be replaced during every oil change, with costs ranging approximately RM120 to RM300. Owners should monthly inspect oil quality using the dipstick - immediate action is required if the oil appears dark black, shows abnormal viscosity, or contains contaminants. Additionally, vehicles older than 5 years should adopt shorter maintenance intervals due to engine wear, whereas new energy hybrid models operating primarily in electric mode may extend intervals to 15,000 kilometers or 18 months, provided regular fluid condition checks are maintained. Adhering to the vehicle manual's recommendations while making practical adjustments based on driving conditions will effectively prolong engine lifespan and maintain peak performance.

In the Malaysian market, models with low maintenance costs are typically dominated by local brands Perodua and Proton, which offer significant advantages in terms of affordability, reliability, and parts availability. The Perodua Axia E, as an entry-level model, is equipped with a compact 998cc engine, a 5-speed manual transmission, and delivers ultra-low fuel consumption of 22.5km/L, resulting in minimal daily operating costs. Its basic service cost ranges from RM150 to RM200 per session, making it ideal for budget-conscious consumers. The Myvi and Bezza from the same brand are also renowned for their durability: the Myvi features proven 1.3L/1.5L engine technology with competitively priced components, while the Bezza's 1.0L/1.3L powertrain combined with aerodynamic design ensures low failure rates over extended use. The Proton Saga maintains the classic Mitsubishi technological platform, featuring straightforward mechanics and a widespread service network, with routine maintenance costs kept under RM200. While Japanese models like the Toyota Vios and Honda City command higher purchase prices, their long-term ownership costs remain competitive due to global parts supply chains and strong resale values. Notably, the Vios' 1.5L Dual VVT-i engine boasts maintenance intervals of up to 10,000 kilometers. These models share common characteristics including market-proven powertrains, standardized component designs, and comprehensive after-sales support, all contributing to reduced maintenance frequency and costs.

Automotive maintenance items are mainly divided into three categories: daily maintenance, regular maintenance, and maintenance under special circumstances. Daily maintenance includes the "three inspections" before driving, during driving, and after parking, as well as the "four cleanings" to keep the oil, air, fuel filters, and battery clean, while also checking for the "four leaks" (water leakage, oil leakage, electrical leakage, and air leakage). Regular maintenance is categorized based on driving mileage or time. Primary maintenance (7,500-15,000 km or 6 months) focuses on lubrication and fastening, requiring an engine oil and oil filter change, along with checks on fluid conditions such as coolant and brake fluid. Secondary maintenance (15,000 km or 12 months) emphasizes inspection and adjustment, including replacing the air filter element, checking brake pad thickness, and verifying the tension of the timing belt and other critical components. Non-regular maintenance encompasses new vehicle break-in inspections (e.g., fluid replenishment and fastener condition), seasonal maintenance (e.g., testing coolant antifreeze performance before winter), and specialized maintenance for long-term parked vehicles. Routine maintenance also involves periodic replacement of components such as spark plugs (nickel alloy: 20,000-30,000 km / iridium: 100,000 km), brake fluid (every 2 years or 40,000 km), transmission fluid (manual: 60,000-80,000 km / automatic: 40,000-60,000 km), and tires (replacement after 5 years or 80,000 km). Vehicle owners should strictly adhere to the maintenance schedule outlined in the owner's manual and adjust appropriately based on actual driving conditions. For instance, in dusty environments, the air filter replacement interval should be reduced, while frequent short-distance driving may warrant fluid changes 20% earlier to ensure optimal vehicle performance and safety.

Basic car maintenance is key to ensuring vehicle safety and extending its service life. It mainly includes regular replacement of engine oil and oil filters (mineral oil every 5,000 kilometers or 6 months, semi-synthetic oil every 7,500 kilometers or 9 months, fully synthetic oil every 10,000 kilometers or 12 months). The interval should be adjusted according to climate and road conditions; for example, the replacement interval needs to be shortened in high-temperature and dusty environments. The air filter is recommended to be replaced every 10,000 kilometers or 1 year, and the air conditioning filter every 10,000 kilometers or 6 months, with a focus on inspection before the rainy season. Tire pressure should be checked monthly (refer to the label on the B-pillar for the standard cold pressure value). Tires must be replaced immediately if the tread depth is less than 1.6mm or there is a bulge, and it is recommended to rotate tires every 8,000 kilometers to balance wear. The brake system requires regular inspection of brake pad thickness (must be replaced if less than 3mm) and brake fluid condition (replace every 2 years or 40,000 kilometers; immediate action is required if water content exceeds 3%). In addition, coolant should be replaced every 2 years or 40,000 kilometers, and tap water should not be used for dilution. Battery terminals need to be cleaned to prevent corrosion, and wiper blades should be replaced promptly if there are scratches or abnormal noises. Car owners can perform simple tasks themselves, such as adding windshield washer fluid or replacing filters, but complex components like transmission oil (automatic transmission: replace approximately every 60,000 kilometers) and timing belt (inspect every 80,000-100,000 kilometers) are recommended to be handled by professional technicians. Maintenance must strictly follow the requirements of the vehicle manual, and complete records should be kept to maintain warranty rights. At the same time, the maintenance plan should be flexibly adjusted based on driving habits and local climate; for example, frequent short-distance driving requires early detection of oil acidification, and rainy areas need to strengthen chassis rust prevention inspections. Scientific maintenance not only avoids sudden failures but also improves fuel economy and saves maintenance costs in the long run.