So I bought an 03' GT with 50,000 miles on her, IM getting ready to run sea foam and was wonder wondering, since she is mine now what oil, and how far into a tune up should I go. I.E. plugs,diff oil changed, trans oil changed. MInd you I live in Northern cali, cooldest it gets is about 30' and I love to run her hard. I have a heavy foot. 

