Servus, would like to ask the question about gasoline engines in general*: Which measured values are meaningful, how well the engine can process the existing fuel (Bzw how smooth it can cope with it), ignition angle, knocking, Lambda, which values you can log about 2 fuel types to compare? Please don’t question, would like to try something for me :-)Modern (TSI) motors with all snaps, ignition angle adjustment, cylinder shutdown etc, but without OPF.