Originally Posted By: MKZman
How many use extended OCI (>7.5k) with Platinum?
At least one. Me. I just sent a 10000+ sample on my 4.6 Ford engine...manual says change every 5000 miles if you are not using it in severe conditions. It was nearly perfect at 7500 miles, I'm betting it will still be great at 10000 miles.
Also go 10,000 miles in two Subarus with Platinum. Boring UOA's. It's a very good oil, especially when you can buy it for the same price or lower than "regular" oil. I always watch for the sales, and keep stocked up...