I just bought a 96 Z71, and its making a sputtering noise. Its only noticable when I accelerate. Also what type of oil do you guys prefer to use? It has 150K miles. And has anyone heard of some stuff called seafoam? I guy at work says it works well on older vehicles to remove buildup and flushes the system out. Any opinions?

 

better check your exhaust donuts and the rest of it, pretty common problem, seafoam is some good stuff they should make it edible