04-05-2014, 06:27 AM
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#1 (permalink)
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Enthusiast Member
Join Date: May 2011
Location: PA
Posts: 362
Drives: MB Roadster (sold)
Rep Power: 16
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Quote:
Originally Posted by roy'sz
Well consider this...if your car sits through hot weather and cools at night you do build up moisture over time and in some cases it doesn't have a vent like the power steering or clutch and brake fluid. 2yrs is most likely the key interval. Good mention on the 2 cycles of maintenance. I used to do the second due to the fact I commuted 100miles a day and 88 of it was hwy miles. Also never sat in traffic because I drove opposite of natural traffic flow but changed oil at 6k miles.
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I hear you and each car is a bit different. I have actually been doing UOA's and trending our Z. For us using a very good synthetic like PU 5/30, 7500 miles has been no sweat (could easily do 10K before TBN starts to get low) in my application of 75/25 HWY/City.
Yesterday I did coolant after 4y as its till in warranty (extended) and I wanted to show the dealer a bit more love should I need some help with a claim in the future. Odds are, I won't. In 3 years its gotten nothing but fluid and filter changes, one TSB.
- b
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