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.
1. Contaminated Oil. One surefire sign of a blown head gasket is contaminated oil, which is a direct result of a head gasket that has sprung a leak. To check for this problem, carefully inspect your vehicle's oil cap. If you find a milk-like ring around the cap, your oil has been contaminated.