What is the highest RPM I should coast at on the highway?
joshua_phillips12 asked:
I have a 2006 1.8S sentra. I’m stationed in Germany and I consistanly drive for 30 min to 2 hours at 80 to 100 miles an hour on the autobaun. The highest i will coast at is about 4000 rpm and the redline is 6500. I only use Royal Purple oil and change it every 2000 to 2500 miles. Is this bad for my vehicle?
