Exactly. I have inexpensive (PEI 4) tiles and the basic Home Depot grout -- not epoxy grout and no sealant.
Now, everyone should know that I'm lazy as a dog and that drives a lot of my decisions. But I used dark brown grout so that nothing would stain it. I have gotten oil and latex paints all over it. I've dripped chemical strippers on it (as well as mineral spirits, turpentine and acetone). I've spilled every kind of automotive fluid on the stuff, including gasoline and lots of (stinky) gear oil. Everything wipes up easily with a rag or paper towel. If the paint has dried on, you just scrape it with a razor blade.
And as I've said, I've had it for over five years now. In the category of under-a-buck-a-square-foot floor treatments, I don't think there's anything that beats it. (It might just win in the price-is-no-object category, too.)
Driving on tile is not the thing that's going to hurt it. Even with an 8,000-lb truck, you're distrbuting the load in four patches, and the point of impact is a flexible tire, which conforms to the surface and distributes the force without high spike loads. Jack stands will deliver that weight in a more pointed way. Rolling a 500-lb engine assembly on the little steel wheels of a floor jack concentrated a lot more force on my floor. But with my tile, I've done all of the above without problems.