DB One recognised symptom of head-gasket failure is contamination between the cooling and lubrication systems. When coolant mixes with engine oil, it can create a milky or creamy appearance around the filler cap or on the dipstick.
Other possible explanations
Residue around a filler cap can sometimes have other explanations, particularly condensation on vehicles used for repeated short journeys. One symptom isn't a diagnosis.
What to do
If you notice milky oil alongside other symptoms such as overheating or coolant loss, get the vehicle inspected.
DB Autos can investigate milky oil and establish the cause. Call 01782 844320 or bring your vehicle in.
Got a question about your car's engine? Speak to the team at DB Autos.
Get In Touch →Why Choose DB Autos
DB Autos has been diagnosing and repairing cylinder head and head gasket problems for motorists across Stoke-on-Trent for over 35 years, offering honest diagnosis and clear advice before any work begins. Every job starts with a straightforward conversation about what's needed.