+1 with surfstar. Don't get too hung up on engine warranty, or types of engine oil used.
If you aren't running a stroked engine, and you have all the necessary engine scheduled servicing done religiously (e.g. timing belts, water pump, idler tensioner bearing, etc.) chances are, your engine will live to an easy ripeful age of at least 200~ 300k miles, or 20+years until you get sick and tired of it.
Q.