Q: I have a For F650 6.0L. I did a oil change and added 25% Lucas oil stabilizer with 3 gallons of oil, the oil won't drain

asked by on August 01, 2016

I'm worried that the Lucas oil won't allow the oil to drain down to the pan which is why I'm not getting a reading on the dip stick, ov never seen this before, I added the correct amount of oil mixed with Lucas
My car has a manual transmission.

If you are not getting drain back of the oil from the cylinder heads, then you may have sludge build up in your motor. Even with the stabilizer, you should not have issues with getting a reading on the dip stick. Look inside the valve cover to see if there is oil stuck in the head.

Do not start the engine if the oil pan has no oil in it or engine damage may happen. You may need to use an oil crankcase cleaner to dissolve some of the sludge or remove calve covers to clean out sludge and oil drain passages. If you need to have a professional take a look at this, a certified technician from YourMechanic can come to your car’s location to inspect your oil situation and determine what should be done next.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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

Car is reading trouble code PO136 01/01

Hi. There could be a couple of things going on here. There are multiple oxygen sensors on your car and sometimes what we think bank 1 is may not be and the wrong oxygen sensor is replaced giving us the...

Evap large leak code

If you have a large emission system leak the best way to find the leak is to do a smoke test and put smoke pressure in the fuel tank and it will show the smoke out of the system leak....

Speedometer not working

The speedometer receives a signal from the vehicle's speed sensor. A malfunctioning speedometer is often connected to some malfunction with this sensor, or the vehicle computer. Have a mechanic, like the experts housed here at YourMechanic, inspect these systems for...

Related articles

The Best Used Cars to Buy If You’re a Plumber
Plumbers Plumbers need to carry around all manner of tools and supplies. If you’re plumbing a large building, or even a decent sized home, you’re going to need a vehicle that has quite a bit of cargo capacity. A car...
Why Are 5W-30 and 5W-20 Oils So Common?
Changing oil is one of the most important car care tasks. Most cars use 5W-20 or 5W-30 oil because those oils work best in hot or cold temperatures.
How to Check Your Oil
Changing engine oil is an important part of basic car care. Check motor oil on the dipstick to know if you need to add oil to your engine.