EURO-4 fuel

[Quint]

Bad for the injection pump. But you can use 2t oil as lubrication substitute.

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If you have a Euro 4 or Euro 5 engine like the CRDIs in the market, why would you need 2T? Who said that you need the lubricant if the engine was specifically designed for this kind of fuel? Can anyone show some tech data to substantiate the need for 2T lubricants?