Nothing will extend your car’s life more than checking and changing your oil regularly. Nothing will destroy an engine faster than neglecting oil-level checks or fresh-oil changes.
Flush the cooling system and change coolant once a year. A 50/50 mix of coolant and distilled water will prevent corrosion and keep the cooling system in good shape.
Change out transmission and differential oils according to your vehicle owner’s manual. Always use the type of transmission fluid or gear oil recommended by the vehicle manufacturer.
Keep your vehicle clean. While washing the outside of the vehicle is obvious, most everything the vehicle ran over can also get stuck to the underside. Winter salt and road grime are not your friends.
Everything with moving parts needs grease to survive. Have them checked with every oil change.
Nothing keeps paint looking good and protected like a coat of quality wax. Apply wax at least every six months.
Driveline components such as u-joints also require regular lubrication.
UV rays from the sun can damage the interior of your vehicle. Protect the plastic by parking in the shade, using a window deflector screen, and applying a UV protectant to prevent the plastic and vinyl from fading, drying out and cracking.
Inspect, clean, and repack wheel bearings with wheel bearing grease according to service intervals. Wheel bearings and grease are inexpensive compared to spindle and hub replacement, or liberated wheels rolling down the road ahead of you.
Brake fluid is hygroscopic. This means it is adept at attracting moisture, which causes brake components to corrode and fail. Replace fluid and bleed system once a year. Brake fluid is cheap. Calipers, hoses, and sensors are expensive.