Can you plea no lo contend-re on a dui?

The term is Nolo contendere it comes from the Latin phrase for "I do not wish to contend" and it is also referred to as a plea of no contest.
If you can use a no contest plea depends on your state law. In many jurisdictions a plea of nolo contendere is not a right and carries various restrictions on its use. A no-contest plea, while not technically a guilty plea, has the same immediate effect as a guilty plea.
I

Yes.
May be smart to do so.

Possibly, but it is the same as pleading guilty, depending on the court.

Nolo contendere is a legal term that comes from the Latin phrase for "I do not wish to contend" and it is also referred to as a plea of no contest. In criminal trials in certain United States jurisdictions, it is a plea where the defendant neither admits nor disputes a charge, serving as an alternative to a pleading of guilty or not guilty. A no-contest plea, while not technically a guilty plea, has the same immediate effect as a guilty plea and is often offered as a part of a plea bargain.[1] In many jurisdictions a plea of nolo contendere is not a right and carries various restrictions on its use.

https://en.wikipedia.org/wiki/Nolo_contendere

States have different rules, but in general you can plead no-lo, except that usually the court will convict you on the evidence, assuming there's good evidence against you, and you'll get about what you would have gotten, if you pleaded guilty.

Yes. It is the same as a guilty plea. The only difference between guilty and "nolo contendre", or no-contest, involves the rules of evidence in civil court if the criminal activity is later the subject of a civil lawsuit.

So unless you believe you are going to be sued, which would only be the case if you crashed your car and caused property damaged or injured another person while driving drunk, it literally makes no difference if you say guilty or no-contest. You aren't actually improving your situation by picking one over the other, its irrelevant in 99.99% of cases.

Yes