Hi. People can debate oil all day long but imo there isn't much of a difference. Somewhere out there exists a Blackstone chart showing the best oils for wear but honestly just use any 5w-30, a good filter and just change it often.
You own a 12 year old sports car, you've a bit got more to worry about than what oil brand you put into it also, welcome.

 

Bearing tolerances require specific oil viscosity, unless you have rebuilt your engine to tighter tolerances then stick with the proper viscosity. Don't believe all the hype you hear from people who don't have any scientific data to back their claim.

The blackstone thread was something like 30 cars using various different oils, the spreadsheet was completely useless because you have no idea what condition the motor was in or how the vehicle was driven and the sample size literally had 1-2 engine comparisons on the same oil. It was a nice attempt but there was a total lack of data to build any kind of definitive answer with. I guarantee Nissan however has done the math and engineered the best viscosity of oil for their motor. I believe it's just 5w-30 winter and 10w-30 in a hot summer environment. Track use is different and you might bump up to 10w-40.

If you want to know how YOUR EXACT ENGINE is behaving with any specific oil then get your own blackstone test done and look at the report.

 

 

Engineered based on conventional but as long as you aren't consuming and excessive amount of oil there's no harm running synthetic for the longer oil change interval. If you start to consume more oil using my thetic then just switch back to conventional on the next oil change.

 

Damned auto correct doing wierd things with my words...