Quote:
Originally Posted by roy'sz
How is it exactly that by switching brands your oil temps change? Also it changes with different type of air filters?? I know if you change the weight of the oil you are using that it will change your operating tempature, but it honestly doesn't make sense if you have 1 5w-30 synthetic oil and another brand of 5w-30 sythetic oil. Just wondering.....
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You can run 5w-30 oil from one brand but the way that company formulates its oil doesn't necessarily mean that the engine will respond to its properties as well as from another brand. Engine design and necessary viscoscity may vary from car to car.
Ok, so mobil for example may be a better oil in a camaro SS vs a 370z. Maybe the fact that the camaro has oil and tranny coolers as well as it being a lower revving engine, it may not need the higher viscosity necessary to run a Z.
Since I've owned 4 vQ's I have noticed that certain oils keep engine temps cooler over others. The filters allow more cold air into the manifold vss the stock filters.