I run 20W50 in my '69 most of the year, and 10W40 in the winter (actually, this is what I've done with all of my big-engines car). I use Castrol and Wynn's Supreme Plus oil treatment because they have a good rep with people I trust, though I'm sure there are plenty of good oils out there. This combo's never let me down, so I stick with it. If everything goes well and I have my current car long enough to need to rebuild the engine, I'll probably go with a synthetic after that. My two cents. -Kle. '69 Crown 4DHT ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm