[wolfeyes]

Hi Guys,
I'm getting all kinds of answers on when is the right time to change my synthetic oil, I currently use Valvoline Max full synthetic in my '03 Max and drive around 600 miles (70% city driving) a month. Can I extend my intervals from the Nissan recommended 3k/3 months to 4 months? I have it serviced at the dealership and didn't want to change it too soon.

Thanks

 

[rogoman]

This topic has covered many many times. Here's what I do with synthetic motor oil:
Change the oil every 12,000 MI; change the oil filter every 2,000 MI.

I've used this procedure for many years and have had great success with engine longevity. I believe many trucking companies do the same thing with their fleets.