We pulled interesting customer questions from the email files, many of them falling under the FAQ category, so what better place to provide the answers then on a podcast that is easy to find and reference when you're getting ready to send a sample in. Join Joe, our host and senior analyst as he tackles the following: I'm going to send in my second sample and want to make sure its compared to the first, what do I need to do? Does make-up oil affect your test? How about additives such as Lucas, Restore, or Sea Foam? Will an engine flush mess with my results? How new or old should an oil sample be prior to sending it in? And more!