FIRST OFF, I HAVE BEEN A CERTIFIED CLASS A MECHANIC SINCE 1967, PLUS CERTIFIED./LICENSED MASTER INDUSTRIAL MILLWRIGHT, CERTIFIED /LICENSED MASTER ELECTRICIAN./ CERTIFIED UNLIMITED WELDING / WELDER, FCC 1ST CLASS ENGINEER, AND MANY OTHER CERTIFICATIONS, I AM NOW RETIRED, AGE 73... CARS HAVE ALWAYS BEEN MY HOBBY, I GOT MY FIRST CAR (MODEL T FORD) AT AGE 10, TOOK IT ALL APART, RE ASSEMBLED IT AND IT RAN JUST FINE, BEEN HAVEING FUN THAT WAY EVER SINCE... I BEGAN TO NOTICE MORE AND MORE NEWER CARS WITH BLOWN HEAD GASKETS, THEN I LOOKED INTO IT, WAS... read full review »