Wondering what the masses think about this question?

I recently bought a 2005 Crossfire that only had 65 miles on it. So I am in the process of breaking it in.

This is advise that several people including mechanics have given me about the break in period and how often to change the oil.

1. I plan to do my first couple of oil changes during the break in period every 3,000 to 3,500 miles. According to mechanics I have talked to over the years; this will get any small / tiny / minute metal shavings and other assorted tiny particles out of the engine that typically arise during the break in period.

2. After the break in period is over go with what the owners manual says. In the case of the Crossfire every 7K miles if primarily hwy miles. Otherwise maybe every 5K if primarily city / stop and go driving.

Now maybe this advise about the break in period is bogus. But I have followed it with the last two cars that I bought brand new.

One was a Nissan Maxima and the other was a Chevy Blazer. The Blazer had 170K miles on it when I sold it. I feel confident I could have gotten another 50K out of it.

I am still driving the Nissan Maxima and it has 234,000 miles on it. I have never had any issues with the motor whatsoever. (Knock on wood.)

I only used conventional oil with both of these cards. So I think I am going to stick to the formula with my Crossfire. Using Syn Oil should make it even better I hope.

Hoping that if I do the same with this Mercedes engine in my Crossfire; I will have good luck also.

Bottom-line is don't mess around with things like oil changes. I am convinced my good luck with prior vehicles is that I ALWAYS got the oil changed at the recommended intervals or even a little earlier than recommended.

I wouldn't go beyond what the manufacturer recommends. Even if the Syn oil doesn't break down after 7K miles; that doesn't mean that your oil filter or something else doesn't need replacing.