I may try full syn just to see what it does for the smoking, LIKE A SHERMAN TANK!<br /><br />I enjoy reading all the opinions on the TCW3 oils and types,its all helpful.<br />I have been runing the Wally Penzoil syn blend. because I have not read any posts that say my 200 Johnny Seahorse will burst into flames internally or otherwise crud up to the sticking point.<br />I did a decarb and just purchased in July03.