On 3/22/2011 I did an OCI with new Rotella 5w40 synthetic, and that was only about 1500 miles ago. I was going to run it for a whole year but changed my mind. I checked the oil yesterday and it smelled of fuel, so I decided to do an OCI with 1.5 qts of leftover Pennzoil Platinum 5w30 and the rest Q Horsepower 5w30, and a cup or so of DuraLube, with a new PureONE filter.
With all of my BITOG oil deals stored [4-5 five qt jugs] I may as well do an OCI 2x a year. My 2004 Sentra only takes 3 qts per OCI.
With all of my BITOG oil deals stored [4-5 five qt jugs] I may as well do an OCI 2x a year. My 2004 Sentra only takes 3 qts per OCI.