Skip the auto shop - Our mechanics make house calls

Q: Sludge in engine, constantly low on oil

asked by on

I know I have a sludge problem because changed oil added recommend 6 quarts to engine. Checked oil level over course of 24 hours and I have a dry dipstick. No oil leaks. So I added seafoam to oil drove 100 miles. Changed oil and added 6 quarts oil waited hour checked oil still dry dipstick. Only a little bit of sludge on tip of dipstick. I don't want to add more oil it only should take 6 quarts. Oil pressure at idle is 30 and when driving around the block it went up to 40 when gas applied thend back to 30 seems low. What's should I do? I owe lots of $ still on it. Is it safe to drive?

My car has 173000 miles.
My car has an automatic transmission.

Need advice from certified mechanic? Get help now!

Over 1000 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!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Oil pressure dropped to 0 with knocking noise

It would be difficult to say the oil change caused the problem unless they did not put in oil, or the engine lost all the oil out of a loose drain plug or filter. Other than that, changing the oil...

Q: I just want to know the location for fuel rail pressure sensor for hummer h2 model 2008

Hi and thanks for contacting YourMechanic. Look on the fuel rail to your engine and you will see two lines that will meet to the rail on one side. Right just before the two lines, you will see a sensor...

Q: Loss of power in certian areas

I can't tell you exactly which wire it is that would cause this, but whatever wire you pulled is very likely to be the cause of all these issues. It sounds like it was a main power or ground wire...

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...