We have been doing a lot research. But so far this is what I can tell you. You need to have a Zinc content of at least 1200ppm. I like 1400 plus. Because you are driving it on the street you need to have an oil with good detergents, that are built for street use. IE 15w40 or 20w50. If your just going to pull or race it, use a race oil. Do not use a CJ1 or a CJ4 Oil. It does not have enough zinc in it. Also you want an oil with an high TBN. 10-12. That means it will last longer. Also you want to look at how heat effects the oil. Oils that will hold up to heat longer will be better for you.
As far as oil change intervals this is what I feel will get you started. First if you pull it. You need to change it every 2-4 hooks. Probably closer to 2. That means you need to change it before driving home with it, and you may need too change before you pull. Next your probably looking at no more than a 3000 mile oil change just driving it on the street with no towing. With that in mind, at 500- 1000 miles, I would do an oil analysis test. This will tell you what your oil is doing. They will tell you how much more oil life you have. Depending on the what the test says, you may have to do it again in another 500-1000 miles. Once you find out through analysis, when the oil is broken down, or too dirty, that will be your change interval.
