Introduction
Engine oil degrades over time. Driving with old or low-quality oil can lead to poor mileage, rough starts, and even engine damage. Here are 5 warning signs to help you stay on track.
1. Engine Noise or Knocking
Dirty oil loses its lubricating power, causing metal parts to grind against each other.
2. Exhaust Smoke
While some vapor is normal, thick smoke could mean your oil is too old or contaminated.
3. Oil Warning Light
This is your vehicle telling you to act fast. Don’t ignore the dashboard indicators.
4. Dark, Dirty Oil
Check your dipstick. Fresh oil is amber-colored. If it’s black and gritty—it’s time for a change.
5. Drop in Mileage
Bad oil increases engine drag, which lowers fuel efficiency.
Pro Tip:
Use Motorax TurboMax for diesel engines and Motorax EcoDrive for cars needing fuel-efficient lubrication.


