Engine Oil

Oil Change Frequency & Maintenance

Overfilled Your Engine Oil? Here's the Fix Before Damage Sticks

Overfilling engine oil causes oil aeration and seal damage. Here's what happens mechanically, how much is too much, and how to drain the excess safely.

April 7, 2026

Motor Oil Basics & Label Reading

Dexos1 Motor Oil: What Every GM Owner Needs to Know

Dexos1 motor oil is GM's proprietary spec — not just API SP. Gen 3 is current. What the oil cap mandate means, why it matters, and which oils qualify.

February 11, 2026

Engine Oil Problems & Symptoms

Motor Oil Color: When Black, Brown, or Milky Means Stop Driving

Use this motor oil color chart to read your dipstick — from normal amber to dangerous milky white — and know exactly when to stop driving.

January 11, 2026