I did this test while ago. I collected the oil temperature data from my car on my way to work. Just before I changed from GC 0w-30 to Syntec 5w-40 or the other way around.
as you can see from the chart GC comes up to temperature quicker even though it starts few degrees cooler.
as you can see from the chart GC comes up to temperature quicker even though it starts few degrees cooler.
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