very cool, i like the style of the emblem, a little different to the rest.
do you have any other ideas as to what might go in the emblem? most are using the "TD" but that's not set in stone as a requirement. I like what you have in this one but we have to keep in mind the target audience which is primary engineers and related fields
your emblem is the highest quality so far in terms of overall design structure.
something else important to note is that Transdiesel may decide to use just the "emblem" for certain advertising methods or mediums.
the website will contain the font and the emblem but the emblem outside of the website could be used for other things. This is all based on whether the emblem can carry the brand by itself...food for thought anyway
was that the shield is very cool!, its more about whats in the shield, i think currently its hard to identify with whats in the shield. I think if you are able to give some more examples of different symbols inside that shield then we might just have something!