07-02-2009, 01:09 AM
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#689 (permalink)
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A True Z Fanatic
Join Date: Mar 2009
Location: Charleston, SC
Posts: 15,181
Drives: '07 Z4 "M" Roadster
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Quote:
Originally Posted by wstar
But, to reinforce your point, we do have charts and information from years of experience with engine oil in general. Those charts and information say higher temps = lower viscosity = less protection, and also higher temps = quicker breakdown of your oil = shorter oil change intervals. By that kind of thinking, 260 is certainly a temp to be concerned about if it's happening regularly and/or for extended periods.
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I'm with ya 100%
John
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