Duewise
Duewise
BeginnerFree6 minchecklist

Basic checks

Basic fluid checks

Oil, coolant and brake fluid checks can reveal neglect, leaks and urgent maintenance.

Learning goals
checklist
  • ✓Check oil level/condition safely.
  • ✓Inspect coolant level and leak signs.
  • ✓Know when fluid condition is a walk-away warning.

Fluid checks are evidence checks

A clean engine bay is not proof of maintenance. Read levels, look for staining and ask for dated service invoices.

  • Very low oil is a serious warning.
  • Coolant residue can point to leaks or overheating history.
  • Brake fluid should be changed by schedule, not ignored indefinitely.

Common mistakes

  • Treating fresh oil as proof of full history.
  • Ignoring coolant smell or staining.

Buyer actions

  • Ask for dated invoices for oil and major fluid services.
  • Price visible leaks as diagnosis needed.
Quick recap
  • ✓Fluid checks are quick, cheap and high-value.