this might be a newb question...but here it goes anyways. since synthetic oil is supposed to be changed every 5000 to 7000 miles and regular oil is supposed to be changed every 3000, is it fine if i just use regular oil all the time as long as i change it out every 3000 miles??? are there more benefits of using synthetic besides being able to drive longer without an oil change???

 

Regular oil these days is good up to 5k, especially ones like Castrol GTX. There is no reason to change it at 3k now. Going to synthetic unless you are extending your miles to like 6k or more, it's a waste of money.

 

way better on the motor because synthetic doesnt break down....but search man there is tons on this already....

 

I switched to syn. at 7k miles. Runs better IMO.

Atleast i know im running the good stuff!

 

Full syn will keep your internal more LUB. and more LUB IS A GOOD THING =0 )

 

My friend just purchased a new IS250 and his came with synthetic oil.

I switched to synthetic Castrol Syntec 5w-30 at 1,500 miles. My motor runs like a champ.

 

Read through this thread

2007 VQ35HR Engine Oil Analysis

 

No it won't sorry to say. The only advantage is it doesn't break down as fast and you can go longer. That is all.

 

Nerds, quoting nerds - quoting nerds!