Free Diagnostic Suite
Your Complete
Car Oil Health Checker
5 expert tools in one — know your oil grade, read your dipstick, decode oil color, and catch problems before they cost thousands.
Oil Type Finder
Select your vehicle to get the exact oil grade, capacity and spec
Dipstick Level Reader
Drag the slider to match your dipstick reading
MAX
MIN
50%
Move the slider
EmptyMINGoodMAX
Oil Color Analyzer
Tap the color that best matches your dipstick oil
Select the closest oil color
Oil Change Interval Calculator
Get a precise, personalized next oil change date and mileage
Oil Pressure Warning Checker
Describe your warning light to get a severity rating and action plan
What is your oil pressure light doing?
Brake & Transmission Fluid Health
Evaluate both critical fluids in under 60 seconds
Brake Fluid
Transmission Fluid