Well We made several changes (different engine builder) So we use Idemitsu racing oil http://www.idemitsu-usa.com/ We will use the 10-30 for winter storage then go to 20-50 for race season. Of course when changing weights you can't get all out so we phase in went to 20-50memorial day weekend at Watkins Glen. Of course test day on Friday we had Snow Sleet and Rain!! Then We did change oil again before July Sprints (but were unable to run) Then just ran at Pitt International Temps not too High(outdoor) and Stable water temps and oil temps and got some suggestions From Viper Team as how to get that even better! Zero weight makes me nervous LOL
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