A huge advantage to synthetic oil in my area is that it does not thicken like conventional oils do when the temperature dropps. IMO, synthetic oil is a must for any car you are going to depend on in the winter if you live in a colder climate. ----- Original Message ----- From: "Frederick Joslin" <fljoslin@xxxxxxxx> To: <mailing-list@xxxxxxxxxxxxxxxx> Sent: Sunday, December 11, 2005 10:05 AM Subject: Re: IML: oil - synt vs. SAE I had a 66 Newport (383 2bbl) from 1994 to 2004 and ran nothing but Synthitic oil in it. I changed the oil once a year whether the miles warranted it or not. I believe that I usually ran 20W/50 Mobil 1. I feel that synthetic oil is even more important for "classic" car today since they probably get driven less frequently and sit for longer periods between use. Typically the synthetic oils have a more aggressive additives package than the conventional oils. There is a separate controversey on what constitutes synthetic oil.Castrol was sued by Mobil recently because Castrol stopped using "synthetic" oil. The judge in the case said the "synthetic" was whatever you wanted to call it. After this caseMobil backed away from 100% synthetic in thier new "tri" blend. I strongly believe that real synthetic oil is worth the relatively small additional extra cost and use it in all my vehicles exclusively. ----------------- 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