Liu switched to SDA for a long time, for several months, so now I can compare. In principle, they are approximately the same in effect: one and the other additive reduces noise from the engine, mainly from nozzles. No reduction in consumption is observed with either one or the other. I returned to liquidation because of the packaging - here it is much more convenient than with SDA, where you have to fill a full tank to get the required proportion. And if you pour a bottle of SDA on the floor of the tank, then at a price of about 600 per bottle of liquidation, it turns out to be even cheaper.
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