01-11-2012, 07:06 AM
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#17 (permalink)
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A True Z Fanatic
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Quote:
Originally Posted by martin82
Will be going to streets of willow this saturday, never run this track so will be fun. I'm at almost 3K miles, and need to do an oil change before saturday. Thinking of going full synthetic 10w30 thoughts?
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There's no point raising the cold weight, it will just mean the oil is thicker on a cold start. If you are seeing high temperatures regularly then you could consider an oil with a higher hot weight, e.g. 5W40. The second weight is measured at 210F. The 5W30 is going to be at it's ideal weight at 210F where as 5W40 will need 230-240F to be in it's sweet spot, and you'd have more protection at 260F.
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