We recently added a second recipe for STL fuel. Our initial estimate showed that it would be on par with the existing recipe, but it turned out to be way better than the old recipe. This has been noticed and discussed by many players, among the first ones have been @rain9441 and @TwilightSentinel, thanks!
Hence, we will change the recipes next Tuesday, July 27th!
The existing recipes
1 AMM + 5 NAB -> 200 SF
3 H + 1 NA + 1 BOR -> 20 NAB
will be changed to
1 AMM + 5 NAB -> 150 SF
5 H + 1 NA + 1 BOR -> 20 NAB.
There will be no change in the recipes lengths.