Demystify car maintenance. Learn what your car actually needs, avoid unnecessary upsells, and make smart decisions for your vehicle's health.
Everything you need to know about the lifeblood of your engine.
Conventional oil is derived directly from crude oil, while synthetic oil is chemically engineered for better performance, high-temperature resistance, and longer lifespan. Most modern cars require synthetic oil.
Viscosity refers to oil's thickness. The first number (0W) is the winter/cold rating, and the second (20) is the operating temperature thickness. Modern engines use thin oil (0W-20 or 5W-20) to improve fuel economy.
Many European brands (VW, Audi, BMW) require oils that meet specific manufacturer standards (e.g., VW 502 00). Always ensure your mechanic uses the approved oil, not just the correct viscosity.
Are you wasting money on premium gas?
Check your manual or gas cap. If it says 'Premium Required', you must use it to prevent engine damage. If it says 'Premium Recommended', you can safely use Regular, though you might lose a tiny bit of horsepower.
Top Tier gas contains higher levels of detergents than the EPA minimum. It helps prevent carbon buildup, especially in modern Direct Injection engines. Look for the Top Tier logo at stations like Costco, Shell, and Chevron.
Beyond engine oil, these fluids keep your car safe and running smoothly.
Brake fluid absorbs moisture over time, reducing braking performance. It should generally be replaced every 2-3 years, regardless of mileage, especially on European cars.
Coolant prevents your engine from overheating in summer and freezing in winter. Never mix different colors of coolant (e.g., green with orange), as it can sludge up your cooling system.
Even if your manual says 'lifetime fluid', mechanics recommend changing automatic transmission fluid every 50k-60k miles to ensure longevity. CVT transmissions are especially sensitive and require regular fluid changes.