sgp0511

88 firebird 305 quadrajet 700r4, was doing a high speed run the other day vs this little HHR , I was doing 95-100, pedal mostly to the metal, rpms were up but not sure exact numbers as no tach. I was on the throttle hard (was catching that damn HHR lol) and I look in my rearview to all the sudden see a HUGE cloud of white (oil for sure) smoke behind me so I let off throttle and smoke stops pouring out of my exhaust. I thought I blew the motor but I pulled off the highway and by that time there was no more smoke . I checked my oil and everything was fine. Drove fine ever since , no smoke no ticking no knocking. It was just real odd how that happened, has this happened to anyone else?

86LG4Bird

iTrader: (1)

Is your trans fluid over-filled? It can push out the vent tube at high rpm / high temp and land on your exhaust.

sgp0511

Trans fluid proper level, it for sure was off of the exhaust and was oil I just wonder why it did that.

mk1431

white smoke is coolant blue is oil could you smell it

red rock

iTrader: (2)

Careful you didn't blow a head gasket? White smoke is usually coolant as posted above. It may have let the gasket go at high RPM causing coolant to run into the exhaust.

sgp0511

Yes it was oil whitish with blue tinge, looking like a 2 stroke, I am familiar with the differences between oil and coolant, but oil is fine coolant fine this is about 3 weeks later guess just a weird anomaly