I have a 96 W210 with 145,000 miles. I average about 1200 miles per month (mostly highway miles).

Is it ok to use mobile 1 10W-30?
Also, can I change every 7500 miles instead of every 3000 miles?
Reason I ask is that I read on Mobile 1's website that you can change at the manufacturer's recommended interval which I think is 7500 for this model.

Thank you in advance.