This was an early change from a mileage perspective, but the car had almost no long trips and more than average short trips all winter. I was concerned about fuel dilution and curious about lab results since this is probably the most I've beat up my oil. It did pretty well. I thought I had submitted 3 times to Blackstone, but they only list the previous sample. It was using a green lot of GC. The differences in ad pack can be seen there. This oil had a 4oz dose of ARX.