Lack of power/shuddering.

On the E300 the most common issues are:

* Bad fuel pre-filter/O-ring.
* Bad E300 Turbo Diesel Plastic injection pump lines, OM606.962
* Bad/leaking shutoff valve.

= air leaks into the fuel system..

The other suggestion in your case (using WVO) is a plugged fuel tank strainer/screen.




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__________________
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