Is it confusing to you, or are you saying that some of our readers are thick, having just had the engine stripped and the bores honed, rings replaced and gaskets changed, all the valves have been checked and are within correct tolerence according to the manual etc. minimal wear after all these years, the latter being run on unleaded petrol, and from the mouth of a man with many years of experience (like yourself of course) due to the low mileage that the jeep is doing per annum there is no requirement for any additives to be used, now I cannot say that for a "proper jeep" as you so put it maybe they were not built as well as PW ones, so the people on here will have to make up their own mind as people will do on a forum, but for me it's good.