What information should I prepare before servicing?

Find these four details first

• Vehicle model and production year
• Engine type or displacement
• SAE and performance specifications in the owner's manual
• Use: commuting, long journeys, heavy loads or competition

Describe symptoms precisely

Instead of saying 'it feels strange', note whether the engine is cold or warm, the speed, how long it lasts and any dashboard lights. Photos, video and recent service records can also help a technician narrow down the cause.

When should I stop driving?

Put safety first if oil-pressure, brake or coolant-temperature warnings appear, or there is severe noise, smoke, leaking oil or abnormal braking. Stop driving and get professional assistance.