blew my 1986 volvo 340's headgasket during winter fun and did not notice the symptoms, kept driving with it for a week or two after it was close to overheating during some drifting, tried to let it cool but it took a while, at the same time the heater in the cabin wasn't blowing hot air anymore. dumbass me ignored it and it started running warmer & worse heater over time. oil seems fine as far as i can tell so i might be lucky? will attempt to replace the headgasket soon
