So I have heard lots of guys say water/meth does nothing for more power, it only lowers egts.. What I've found is that those guys are already running really rich air/fuel mixtures and the extra power from water/meth is to be had while running lean.. And remember guys our 335ds run lean so that's probably why they respond so well to water/meth ..and it's perfectly safe for a diesel to run lean because they run cooler like that... Which is opposite of a gas powered engine which runs hot when it's lean..
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