Q: Why did my car leak oil? 2004 Cadillac DeVille

asked by on

I did my own oil change and I switched to fully synthetic oil from regular. So i did the oil change and started the car, next thing i know is that i get an error message that says oil pressure is low. Then i get out of the car and saw that all my oil leaked out.

My car has 116000 miles.
My car has an automatic transmission.

Hey there. You must have gotten the oil filter double gasket from the old gasket O-ring left on and put a new filter on, and it would not let the new filter seal. Remove the oil filter and check for two O-rings and then remove one and reinstall and refill the engine. If you would like to have this scoped out, a certified pro from YourMechanic can come to your car’s location to inspect the Oil Light and determine what should be done.

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. Why did my car leak oil? 2004 Cadillac DeVille

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

Q: 2007 Cadillac Escalade esv ac compresser replacement

I would recommend having a qualified expert from Your Mechanic come to your home to diagnose the vehicle before quoting a price.

Q: Q: oil type

You should only run the 5w20 oil in this engine. The oil passages in the camshafts are pretty small and can reduce flow if anything thicker is used. You should only try using good quality oil that is synthetic. If...

Q: Hi I have a 2004 Santa Fe and I've had to replace the alternator on it and now it's the second time in three months we found out t

Without seeing for myself, I'd say it is more than likely fixable. Oil leaks are not uncommon as vehicles age. It can simply be a valve cover gasket - the top engine cover gasket. Only if it turns out to...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...