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This tag should be used for anything related to the use of automotive engine oil, or in reference to other parts of the car that also require lubrication using oil.

35 votes

Do I have an oil leak if I have to add oil?

You should change your oil more often, it's not just new oil you are putting in, when you change your oil, it takes the old oil and contaminates suspended in that oil out. … Also I would recommend checking the oil level on a regular bases, if you are waiting for the oil light to come on that means there is not enough oil in the pan for the pump to pick up. …
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5 votes

What are the risks of overfilling a small engine with oil?

If the oil level is too high it can actually bend the crankshaft. If the crankshaft is striking the oil when the engine is running it can ruin the engine. …
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7 votes

Oil pressure question

Sounds like your oil pressure is dropping at low RPM, which could be one of the following: low oil level, a bad oil pump, low viscosity oil, or worn bearings. … First step after checking the oil level is to check the oil pressure with a manual gauge. …
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8 votes

oil leaks when driving, not while parked

Oil has a couple of places it can go. … The ground The radiator The tail pipe It could be a leak that only happens under pressure (IE the engine running) but for that amount the underside of the car would be covered in oil and should be very …
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6 votes
Accepted

Why is there no explosion risk while there is a gasoil pre-pump immersed in the fuel tank?

To add a little bit to Paulster2's answer the upper and lower Explosive Limits of Gasoline is 7.6% and 1.4% respectively. This means that a concentration outside of those limits will either be to rich …
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4 votes

I put too much oil in my car, the level has been corrected now but it's still smoking

If the oil is at the correct level now driving the car should be fine. Take it easy on the engine until it stops smoking. … The smoke is likely coming from the residue of the excessive oil from the overfill and will burn off over the next little while. …
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4 votes

Do the Check Engine and Oil Pressure lights have any significance when the engine is off?

The CEL and Oil pressure light stay on until the engine is cranked. Air bag lights, ABS lights as well as others flash a certain number of times or stay on for a few seconds then turn off. …
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2 votes
Accepted

Do I need to add oil after A/C evacuation without replacing any parts?

To answer your question you put back in the same amount that came out when you evacuated the system. If none came out I usually add 1 to 2 oz depending on the size of the system. To address another p …
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