Originally Posted by vtec to vvel

I typically don’t reach 220 and I live in Florida. My Z is 100% stock and is usually around the 200/210 area, but not quite to 220.

Oil changes, I do every 6 months and typically around 1500 miles (my Z sits in my garage during the week). IMO, oil changes every 3k, esp on full synthetic oil, is a bit too early. My daily car, I’ll do every 5k on full synthetic oil.