Gary E
Full Access Member
I emptied mine at 2,500 miles last week, and I think I had about 1/2 that amount (NA - 55k miles). I find that the truck fills it every 5,000 miles in warm weather, and about every 1,500 during the bitter cold months (a lot of water - so looks milky).
The residue looks pretty normal. As long as there are no metal flakes in it, you're fine.
How do you drive? If you enjoy spirited pulls, you will fill the can faster.
Good info. I'm familiar with checking for metal in the oil having been in the airplane industry for 35 years. The residue got the magnet test. In other can checks, the level was much lower for equivalent mileage, so I was bit surprised at this one. The truck gets driven fairly softly, so is not under much stress. Rarely any spirited pulls. The spirited drivers would say it's a pavement queen, although I do take it hunting, so it does get put in 4x4 some.