2008 Audi RS4 w/ 9k miles, 4139 miles on Castrol Syntec 5W40 oil.
Switched to Pennzoil Ultra 5W40 at 9,011 miles
.75 Qt Makeup Oil
60% short trips, 20% stop and go and 20% highway
Switched to Pennzoil Ultra 5W40 at 9,011 miles
.75 Qt Makeup Oil
60% short trips, 20% stop and go and 20% highway
