is 5000 miles too long to wait for an oil change?

[Quaifer]

Originally Posted by 33OH

I run AMSOIL synthetic, change the oil every 25K miles. Change the filter every 10K miles.

You are crazy man. Not only is that way too long, AMSOIL is not a very good synthetic to begin with.


My yaris is at 65,000km (40,389miles). I was using Castrol 5w30 conventional but switched to Mobil 1 5w30 Full Synthetic on my last oil change. I am choosing to go 8,000km (5000miles), using a Fram Tough Guard filter on my first oil change.

The first thing I noticed when I switched to Synthetic was my engine ran a little quieter. Second was just performance, it seemed to accelerate a bit quicker and smoother. I know the filter says it's good for 12,700km (7500miles) but I don't feel comfortable going that kind of distance. I do a lot of highway driving going back and forth to work so I will find out in a month how the oil works out.