? ON MOTOR OIL

Has anyone used Ams Oil we had on of there trailer they use with the offshore boat racing he said they have a oil you can put 25000 miles on a oil change hard for me to beleave he said all you have to do is change the filter every 5000 and top it off .He also said they had a dt466 they had over 230000 miles on it and have never changed the oil in it only oil filters they use it to pull the boat with he is going to send me some info on the oil.But I find all this hard to beleave all he said the oil would do just wondering if anyone has herd of it or run it.He trying to get me to go with it at work in all the forklifts,tractors,and air compressores

I put it in my 7.3, engine, tranny, and rear-end, cost right at 300.00 bucks, said I could run engine oil 25,000 but I got scared and changed it at 15000, must admit it still looked good.

Good oil, wouldnt run it that long.