I overfilled my engine of my Dodge Viper by accident. After it started running really bad I put it away. Now It won't turn over. Should I flush the aerated oil out of the engine with engine flush before changing the oil?
Running the engine in the current condition is only going to cause more oil issues. You need to remove some oil before running it again. You can do this by using suction to draw it out thru a hose down the dipstick tube or drain some from the pan.
Personally, if the foaming is bad, I would:
- drain the pan
- fill it with cheap oil and engine flush
- run it and drain again
- fill with clean oil
Depending how much you over filled it, it can cause issues if oil residue gets on sensors. That may be a possible explanation why it ran bad and won't start.