I have my stash I need to use, I'm coming up on my annual change in my 2008 4.2L Trailblazer with 180k-ish on the clock
Currently I'm running 0W-40 Rotella T6
I have at my disposal
More Rotella T6 from CJ-4/SM of 2015 vintage
5W-40 CK-4/SN Delo 400 XSP I think the oldest jugs I have are from 2018
0W-40 Mobil1 of 2019 vintage
5W-40 Rotella T6 from 2020
0W-40 Castrol A3/B4 which was manufactured in 2020, maybe early 2021
5W-40 Quaker State Euro from spring of 2021
5W-30 Mobil1 Truck & SUV from mid-2021
5W-30 Mobil1 High Mileage also from around mid 2021
5W-30 Mobil1 Extended Performance also from around the same time frame as the 2 prior.
Currently I'm running 0W-40 Rotella T6
I have at my disposal
More Rotella T6 from CJ-4/SM of 2015 vintage
5W-40 CK-4/SN Delo 400 XSP I think the oldest jugs I have are from 2018
0W-40 Mobil1 of 2019 vintage
5W-40 Rotella T6 from 2020
0W-40 Castrol A3/B4 which was manufactured in 2020, maybe early 2021
5W-40 Quaker State Euro from spring of 2021
5W-30 Mobil1 Truck & SUV from mid-2021
5W-30 Mobil1 High Mileage also from around mid 2021
5W-30 Mobil1 Extended Performance also from around the same time frame as the 2 prior.