Quote:
Originally Posted by chii370
so the "after 2012" models dont have coolers? i thought ALL z models had it after 12.
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All 2012+ Z's have watercooled oil coolers.
Unless you are tracking the hell out of it, they should be fine. Many folks install air-cooled oil coolers, but they tend to over cool in the winter if you live in colder regions, and so folks end up getting block-off plates to restrict the cooling.
IMO, unless you routinely see oil temps over 230*, you don't need to worry about it, and even then I'd just make a point to monitor temps more judiciously before running out an installing a cooler.
Ideally you want the oil between about 180* and 200* for optimum lubrication and power.
Much lower is not ideal and much higher is not either, although most modern synthetic oils perform just fine on the hot side, with negligible shearing, provided you are not creeping into the 300*'s and racing the engine (impossible on this car, as it will go into limp mode over 260* or so).
Undercooled oil (say, below 160*) is worse than a bit hot if racing the engine as far as lubrication goes, although modern synthetic oils are also better engineered to work well cold too.
Overall, I wouldn't race the engine until in the 160*+ temp.
My 2 cents on this are informed by professional engine builders and by data from engine building and tuning texts on the subject that I've consulted over the years, but someone more versed in oils and machine lubes may have a different view on this.