Is it really a BIG problem to overfill oil?

Question

I have a 2005 Ford 500...3.0 Duratech 6 cylinder. Never a had even 1 problem. A friend changed my oil instead of a shop for the first time. I've been unemployed for a year and trying to save $. He put 5 1/2 qts of oil i , instead of 5. I know it's not a good idea, but is it a big issue or just something that factory recommendations say to avoid liability. I also know that over filling trans fluid can blow a seal. I guess I'm asking if this possible with oil also, or is is not that big of a deal..

Update:

sorry if I duplcated this Q. Got an error message and may have sent it more than once not knowing if it went through

mdk68gto, ase certified m tech · Accepted Answer

here is the funny part, the dipstick is wrong, it has been since 1983. that engine holds 6 quarts.

Mark · Answer

If you are really worried simply unscrew the oil filter and empty it an screw it back on.  But a half quart of engine oil is not likely to cause any problems.

Mark S · Answer

1/2 quart is not likely to cause any major problems... but it you're concerned, just have your friend loosen the oil pan plug and drain out that 1/2 quart.

Sally · Answer

A 1/2 quart won't hurt it. Check your dipstick, it will probably show ok, the filter will hold 1/2 quart.

Chris · Answer

Half a quart is not going to cause a problem.  Why don't you get him to put it to the right level for you anyway.

energizer023 · Answer

No it will be fine, just oil will slosh up on the crank and cause more reciprocating mass, which means you lose some power and fuel economy.

Anonymous · Answer

if you over fill with oil it can make the car blow white smoke.

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Is it really a BIG problem to overfill oil?

7 Answers