6 months 5,200 miles, 150,000 on engine. Driven fairly gently in South Florida sub-tropical heat. Quite a boring report probably of interest only to Accord owners and for the comparison between previous dino Valvoline 5W/30 (syn. stated on report is incorrect)and dino QS 5W/30. The QS certainly shows higher moly, boron, calcium, phos and zinc.