1 The Tri-State Tornado lasted for 3 1/2 hours, starting down at 1:01pm 3 miles NNW of Ellington, MS and dissipating at 4:30pm 3 miles SW of Petersburg, IN. 2  Average forward speed of this tornado was 62 miles-per-hour with a record setting speed of 73 miles-per-hour at one point.
The side effects of a blown head gasket include oil and coolantmixing, poor performance, and smoking.
A driver will often wonder what causes a blown head gasket. The truth is, anything from the coolant system to the combustion chamber could be responsible. Most confusing is the fact that symptoms which resemble those of head gasket failure will sometimes originate from other causes. In certain cases, a symptom might show due to multiple failures within the engine.