Is it really a BIG problem to overfill oil?
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..
sorry if I duplcated this Q. Got an error message and may have sent it more than once not knowing if it went through