Hello,
This fill is RD30 - Amsoil Dominator Racing 10W-30 100% city short trips driving test - compare it with previous 1500km (about 1k mi) on Amsoil AFL 5W-40 (driven same way). No fuel on 5W and 0,8% on 10W, insolubles lower on AFL - no sense to fill racing oil for city driving in my opinion...