Please ask your lawyer, where in the form USCIS expressly states "Only 5 year" driving offenses to be posted.
The 5 year window is for the USCIS to determine the eligibility based on moral turpitude grounds, but they do want to know "all' violations of the law - both civil and criminal.
Yeah, i was a little confused about that too, but thats what he said. From my understanding he seems like quite a good lawyer. He has helped many people from being deported, and helped countless others get naturalized..but who knows.