Q: can a car leak grease?

asked by on

My truck leaks a fluid. I've been told that my truck is leaking oil and I've also been told it was grease. It leaks near the oil pan. Can a vehicle leak grease?

Greases are viscous semi-solids and are not used in engines or transmissions. Consequently, no grease is leaking from your engine or transmission. The greases that are used in vehicles are found in suspension joints and CV axles and those do occasionally leak. In the case of CV axle joints, when the CV boot tears, the grease will fly out as the axle turns at high speed; you will see grease all over the whee well and on the inside of the wheel. Tie end boots break, too, and the grease leaks out. If the leak you are having appears to be near the oil pan, the leaking material is either engine oil or transmission fluid or possibly both. Of course, there is a liquid in the cooling system too, that could leak down from above, so you want to be sure it is not coolant. Ethylene glycol (a typical compound in anti-freeze) can have a slight oily feel but will be distinguishable from engine oil in both color and viscosity. If you would like any leaks that you have evaluated, along with a suggested repair strategy, feel free to schedule a Leak Diagnostic with YourMechanic and a certified Mechanic will be dispatched to assist you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. can a car leak grease?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...