I just wanted to get ya'll's thoughts on oil for my 2012 Mustang GT California Special Convertible. It has the 5.0. It is a 6 speed manual. I have been having the oil changed at the local Ford dealership. They are using the Ford Synthetic Blend. I have been changing it when the computer tells me to, which is around 7000 miles. It uses 8 quarts. I was suprised at how much oil it holds. I am at work but I think it is 5w-20 that it calls for. I will continue to use the Motorcraft oil filter. I have been thinking about it and I don't get the blend. It seems like you would be loosing the benefits of the the Synthetic oil. I am probably looking at it wrong but I want to use full synthetic in it. What synthetic do you recommend and why? I appreciate your thoughts and information. I always learn something and see ideas I hadn't thought of. Thanks, Wes