I am thinking about getting some LC and FP for my cars. Here are some questions: 1. LC in the engine oil. Does it work with dino and synth (PAO and POE) both? Is it a flush before drain or to be used continiously? What are the use rates? 2. FP in the gas. Can I store a vehicle for four/five months with this stuff in there? What does it actually do? Does it clean carbon out of combustion chambers? What are the use rates? 3. Neutra is a fuel additive, but some recommend it as a flush in the engine oil before draining, right? What are the use rates in gas and motor oil? How does it comapre to LC/FP? Thanks everyone for helping me to make a decision!!