No problem. Just for your information also, Mobile makes synthetic aviation oil. I need to clarify what I said earlier about not being able to use the AVblend additive in an airplane. You can't use it in a factory built airplane. If you build a plane in your shed you have more flexibility in what you do as far as that goes. I also forgot something else oil does. It carries contaminates to the filter and out the drain. However, because of the combustion processes acids build up in the oil and cannot be filtered out, this happens before it breaks down as a lubricant. If you leave your oil in too long the acids will build to a level that will damage seals and gaskets and you will see a lot of leaks. Mobil One will not break down as a lubricant as quick as organic oils but it still can't carry more acids. Food for thought if you plan on leaving your oil in for 12,000 miles or something crazy like that.