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.
Causes of a Blown Head Gasket. After that brief overview of blown head gasket symptoms, let us have a look at the prime causes of a blown head gasket. There are more than one reasons that may cause a head gasket failure, ranging from inherent structural problems to engine problems.