Approx Time Mileage Service Required
1 Month 1,000 Initial Oil and Filter Change
3 Months 3,750 Oil and Filter Change
6 Months 7,500 Minor Service
9 Months 11,250 Oil and Filter Change
1 Year 15,000 Intermediate Service
 
1 Yr. 3 Mos. 18,750 Oil and Filter Change
1 Yr. 6 Mos. 22,500 Minor Service
1 Yr. 9 Mos. 26,250 Oil and Filter Change
2 Years 30,000 Major Service
 
2 Yrs. 3 Mos. 33,750 Oil and Filter Change
2 Yrs. 6 Mos. 37,500 Minor Service
2 Yrs. 9 Mos. 41,250 Oil and Filter Change
3 Years 45,000 Intermediate Service
 
3 Yrs. 3 Mos. 48,750 Oil and Filter Change
3 Yrs. 6 Mos. 52,500 Minor Service
3 Yrs. 9 Mos. 56,250 Oil and Filter Change
4 Years 60,000 4 Year / 60,000 Mile Major Service
 
The Cycle then repeats as time and mileage accumulate.

And always if you are not sure just ask.