M1 5w-30 has been in my 2001 Tacoma for 9 months and 5600 miles.
My 2 previous UOA at 5000 and 5800 miles were well within limits with the suggestion that I run 7000 miles on next change and send in UOA. 7000 miles was my intended interval goal in the first place with this oil.
The reason for the low mileage is that I started carpooling last fall and the truck is not driven on my days off. Oil was put in early last winter.
I'm wondering if any problems could exist with this length of time and if I could actually go out to 12 months/7000 miles which ever comes first on this change?
Thanks