RTV IMO has a few advantages. First, anti seize "only" has a range of about 450 degrees. Certainly shouldn't be a problem on the engine, BUT, RTV far exceeds that at 2K degrees. Secondly, RTV IS basically anti seize. Since it will prevent rust and corrosion, it keeps the bolts from seizing up. Lastly of course comes its fantastic sealing abilities. I have recommended it many times before and have been violently disagreed with. The complaints were something about it being messy to clean up. Sounds like a pansy excuse to me. The stuff works. That's all I can say.