I’ve been trying for some time now for diesel additives. First I tried something with 2-stroke oil until I found out that the stuff can have quite unwanted side effects, up to the constipation of the injectors. So I switched to Liquid Moly Super Diesel additive and since then have about 5% less consumption, besides subjectively detectable changes, such as quiet running. Since my current vehicle is relatively new, I can’t report any long-term experiences yet. n, on the LM-side, there are interesting reports from professional users (transport-entrepreneurs, combined heat and power plant, transport companies). Among other things, it is reported that previously occurred problems e.g. with injectors since use of the additive belong to the past. Of the costs ok, because I got a 5l canister for 65 EUR and use the stuff 1:300 to 1:250 for every 2nd tank. Must be enough for approx. 2500 l. Even at konse rvatively calculated KS-ERsparnis remains a small profit with the additional effects wg. cleaning etc. Who has still had experience with diesel additives? Please no reports for 2-stroke oil, there are more than enough forums and I don’t want to pour anything into the tank of my highly bred diesel, which is not intended for use in diesel engines.