Anyway, all fuel truck is gone, only remains its seated driver.
Which should be solved as I've explained above. Or, at least, it has been solved for everybody that ever posted the same problem so far. Of course, I assume you are using the very latest version of the installer, including all the vehicle updates.
If you don't know or are not sure you have, download the full GSX installer now, which contains everything updated.
Another possible issue, is that you updated P3D but its shader cache hasn't been recreated correctly. Try to remove the following folder:
%LOCALAPPDATA%\Lockheed Martin\Prepar3D v3\Shaders
Then wait for shaders to be recreated on the next startup.