I've seen a lot of papers on how engine oil formulations are being studied to better deal with GDI soot, LSPI, etc. I've not seen much on fuels. Seems to me that Gasoline formulation is every bit as important as motor oil formulation for preventing soot and LSPI. Is the industry looking at how to optimize gasoline blends for GDI? Does anyone have links to any articles? I didn't find much in my search.