bey

my car drives fine until u drive for over 30mins.. it seems like its getting hot then.. feels slow... drives shitty... its not over heating but just drives shitty.. .. when i restart the car while it is hot, it sounds and shakes like its on 3 cylinder(only does this for like 15 seconds or so..)..... i see white smoke comming out the back.... then it goes back to driving shitty again... I don't lose too much coolent but it goes down slowy...

Redline130

White smoke is often a tell tale sign of a bad head gasket. Check your oil and see if there's water in it.

JimBlake

If the white smoke in your exhaust smells sorta like antifreeze.

If you get oil in the radiator, or antifreeze in the oil... Either one or both.

If you get bubbles coming into the antifreeze overflow bottle when you rev the engine.

If any of your spark plugs look really, really, clean & shiny.

Compression test & leakdown test would be a good way to tell.

petrv

deposits on the spark plugs, overheating: https://honda-tech.com/zerothread?id=826259