Hi Folks, latest UOA on the new WRX. This oil was used over the early winter, so lots of cold starts and short trips. Not comfortable with the viscosity and glad I dumped it early. I have 5W-30 Penn Ultra Plat in there now and will update when I dump that in the spring.
PQI is higher than previous interval? Thoughts?
Also having trouble understanding Oxidation, open to lessons.
PQI is higher than previous interval? Thoughts?
Also having trouble understanding Oxidation, open to lessons.