Friend has a chevy malibu. At 3000 miles 50%, hasn't used any oil. 4000 miles, down 1/2 quart. 5000 miles still a small % like 10-15% on computer, down 1.5 qts, oil looks like tar. I think it only holds 3.5 qts.
Trust the computer if you want.
I'm sticking to the old school 3K rule.