Oil change w/synthetic oil on 2007 Pontiac Solstice GXP

Manual calls for synthetic oil, how many miles is this good for and how much is the average cost of using synthetic oil?

1 answer
Most quality synthetic oil is good for about 7500 miles . A synthetic oil change in a shop usually runs about $80 but you get twice the miles (7500 vs 3000 ). I use it and I recommend it to all my customers, friends and family. More and more high end or performance related cars require it. I use Mobil 1