A low-carbon sustainable fuel mixture, derived primarily from renewably generated ammonia, could power next-generation internal combustion engines (ICEs). Blending ammonia with a small amount of dimethyl ether (DME) gives a liquid fuel with low-temperature combustion properties very similar to gasoline, researchers at KAUST have shown. The development of such fuels could provide an option—in addition to electric cars—for "clean" power for the transportation sector.
source https://www.lifetechnology.com/blogs/life-technology-technology-news/clean-and-sustainable-fuels-could-be-derived-by-combining-ammonia-with-complementary-combustion-modifying-additives