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Old 02-07-2009, 05:16 AM   #38 (permalink)
VTalumni
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Quote:
Originally Posted by AK370Z View Post
Only ones I have used are Mobil 1 since they are available everywhere here. I don't change oil brands. Whichever I use, I'll stick to it.



I think he has a good point. 350Z VQ wasn't too fond of Synthetic, right? I think it's better to wait a little longer like 5000 - 7000 maybe? Just a thought. I sure it'll be fine even if you decide not to wait.
I think you have a point here. I took an Engines and Powertrains class in college and one thing I learned is that you should stick with the same oil over the lifetime of the automobile. I dont know how true it is but I figure if it helps, even in the slightest, Ill follow the tip. The reason to keep the same oil is because each oil has different detergents and switching them can somehow cause a problem.

Also, when I had my SRT-4, I changed the oil every 3,000 miles on the dime because it was turbocharged and the turbo was oil-cooled. But with an N/A car I think 5000-6000 should definitely be more than sufficient. I actually read online that synthetic oil breaks down a certain amount after 6,000 miles and thats when it performs the best.
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