Hi Guys; Recently I drain the oil from the crank and the oil cooler in the radiator,change both oil cooler hoses and filter.Also change the hoses and the filter of the Precision remote oil filter.Then put new oil in the engine,in the filter and in the hoses of the remote filter.I dont put oil in the oil cooler hoses.I want to know first if its neccessary to put oil in the oil cooler hoses and the oil cooler in the radiator?.Second its neccessary to prime the engine or just crank it with ECM dissconnected?