<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Mr. T5:<BR><B>Does anybody know when is the right time to change from conventional motor oil to synthetic (Mobil 1)?</B><HR></BLOCKQUOTE><P>Volvo recommends to wait until your "first scheduled service", which is (if you drive the car in the city or a lot of stop 'n go conditions, at about 3,750 miles.<P>I changed my oil and filter (w/ conventional) at 1,400 miles and then at 3,750. Then I switched to Mobil 1 which I have been using ever since (14,880 miles at present).<P>Yannis<P><P>