2.5 Liter/Litre Factory Motor
Howdy y’all,
TLDR: 2019 sti 34k, oil sample with 3200 sent to black stone for analysis, came back with high copper and silver counts. Tech says these numbers don’t usually show up until around 3600-4000 miles on the oil. Asked about stepping up to a heavier weight and was given a wishy washy...