UOA @12k miles, synthetc vs. regular oil

tranceformer

bump for more results.

I tried a new oil this time: Castrol Syntec 0w-30 aka "German Castrol". I wanted to use a thicker oil because of the summer heat down here. I also started going to the track once a month as well, better protection for the engine is a must.

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Ray
2009 370Z Base Sport 6MT / 12.860 @ 109.09mph / 1.921 60ft / street tires
official 1/4 mile track times

gmr19

old thread I know, but isn't 0w-30 even thinner than 5w-30? The first number is the oil's viscosity when the oil is cold and the second number is its viscosity when hot. Therefore, a higher number equals a thicker flowing oil. So I think you'd be better off running 10w-30 for hotter climates.

Side note, does anyone know what exactly the 5 or 30 number refers to? I don't think the units are cSt. Just a relative number to other oil viscosities at certain temps?

tranceformer

It's thicker than the other 5W-30's I ran previously. I think I might finally try redline engine oil next, just to see there's any noticeable difference.

And FWIW, the car sat for 3+ weeks and started right up, no funny noises at all. My engine seems to like it over the oils I've tried.

__________________
Ray
2009 370Z Base Sport 6MT / 12.860 @ 109.09mph / 1.921 60ft / street tires
official 1/4 mile track times