: Use the dipstick to check level and color. If it's black and gritty, it’s time for a change.
: Never work under a car supported only by a jack. Auto Repair and Maintenance
: Use the "Penny Test." Insert a penny into the tread with Lincoln's head upside down. If you see the top of his head, you need new tires. : Use the dipstick to check level and color
: Use a gauge to match the PSI listed on the sticker inside your driver-side door. Auto Repair and Maintenance
: Check the reservoir when the engine is cold . Never open a hot radiator cap.