Just purchased a 2018 F150 King Ranch (45k kms, 30k miles) and am thrilled with the 3.5L ecoboost with twin turbo's. I am anxious to learn all I can about it and how to properly maintain it as well. I changed the oil immediately after purchase and used a recommended Amsoil flush and filled it with Amsoil 5W30 signature series full synthetic with Amsoil filter. This proved to be an expensive procedure but want to keep it running well. I live in northern Alberta Canada so it will get the severe winter treatment. Again, happy to stumble across this forum and looking forward to the motor talk.