Does anyone use Royal Purple in their engine and is it more prone to oil leaks? I'm using Rotella but I have Mobil 1 syn trans fluid in my trans and Royal Purple in my rear-end. My trans does leak a little. I am considering the Royal Purple in my engine next season possibly. Rich Kinsley '64 Dodge Polara 4 dr 318poly w/goodies ____________________________________________________________________________________ Looking for last minute shopping deals? Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.