TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: Preferred Method: The method further involves selectively separating the first coked catalyst and the second coked catalyst from the third mixture to provide a separated coked catalyst and a product mixture; regenerating at least a portion of the separated coked catalyst to provide at least a portion of the catalysts; and selectively separating the product mixture to provide at least one finished product comprising at least one olefinic hydrocarbon, at least one naphtha having a research octane number greater than 88, and at least one light cycle oil. The fuel is added to the catalyst regeneration step to maintain an acceptable temperature for catalyst regeneration. The third hydrocarbon is added to the first hydrocarbon prior to mixing the first hydrocarbon with catalysts. The third hydrocarbon is added after partially cracking the first hydrocarbon in the presence of the catalysts. The difference between the second temperature and the third temperature is less than or equal to 165 degrees C. The difference between the first temperature and the third temperature is greater than or equal to 110 degrees C. At least a portion of the first mixture is cracked at the second temperature prior to the addition of the third hydrocarbon. The first temperature is 450-565 degrees C. The second temperature is 520-700 degrees C. The catalyst-to-first hydrocarbon weight ratio is 4:1-30:1. The catalyst-to-second hydrocarbon weight ratio is 7:1-70:1. At least a portion of the second hydrocarbon is vaporized prior to mixing with the catalysts. Preferred Components: At least a portion of the fuel comprises all or a portion of the finished products. At least a portion of the light cycle oil comprises the portion of the third hydrocarbon. The first and third hydrocarbon comprises demetallized oils, deasphalted oils, vacuum gas oils, fuel oils, gas oils, and/or greater than or equal to 20C resids. At least a portion of the first hydrocarbon comprises at least a portion of the third hydrocarbon. The catalyst comprises at least one ZSM-11, ZSM-12, ZSM-23, ZSM-35, ZSM-38, Y-type zeolites, metal impregnated catalysts, zeolites, faujasite zeolites, modified faujasite zeolites, Y-type zeolites, ultrastable Y-type zeolites (USY), rare earth exchanged Y-type zeolites (REY), rare earth exchanged ultrastable Y-type zeolites (REUSY), rare earth free Z-21, zeolite Socony Mobil-5 (ZSM-5), or high activity zeolite catalyst. EXAMPLE - No suitable example given.