As the title states my truck use to run 190 ect and about 190-195 eot before i had my studs put in. Then the shops first attempt at doing they used black onyx gaskets without me knowing and they blew withing 5k but my ect and eot were stil the same as before while cruizing and even city driving wasnt realy any higher. So now i made them redo the studs with stock ford gaskets and my ect while cruizing is 200-205 and eot its 205-210 and thats not getting into it at all. So im just wondering what would cause this much of a change? My truck was at their shop for 3 months waiting so since i waited so long i kinda ticked the owner off so im afraid they might have done something but my coolant and oil are all ok and i had a new oil cooler about 9k ago. And they 2 temps never get past 15 degrees apart.