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How long between synthetic oil changes?

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Old 08-04-11, 11:39 AM
  #61  
mandyfig
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Originally Posted by Nick318
Not everyone is going to send their little oil sample to some lab for a TBN oil analysis. I certainly not. lol The aim is to generally change it every 5.5k,6k, 6.5, 7.5k, 8k, blah to be within the standard of every engine run. You cannot tell me that your last engine run of 10K mile with a good TBN will be the same for the next. After all, it is your money and way of doing things so be it.
Go Nick go! I am with ya!

Go to BITOG if you want serious oil talk.
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Old 08-04-11, 03:51 PM
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If sniffing your oil works for you, who am I to argue. Just don't be sniffing your differential oil. That stuff stinks right out of the bottle. Based on smell, you'd be changing that daily.
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Old 08-04-11, 09:32 PM
  #63  
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Originally Posted by Nick318
You cannot tell me that your last engine run of 10K mile with a good TBN will be the same for the next.
Actually, I CAN, as I've doen several UOAs in a row and the numbers were very similar.
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Old 08-05-11, 01:00 AM
  #64  
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This seems like such an endless debate/ argument. I am moving on to happy trails with my 5K per change. Not like it's a really hard thing to do.
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Old 08-05-11, 06:21 AM
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Originally Posted by infinirx
This seems like such an endless debate/ argument. I am moving on to happy trails with my 5K per change. Not like it's a really hard thing to do.



Ding,Ding, Ding!!!! We have a winner folks!! You cant go wrong with 5k intervals. Especially on Synthetic. Just wait till the good ole "Maintenance required light starts a flashin"
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Old 11-19-12, 05:31 AM
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Originally Posted by lexus114
You cant go wrong with 5k intervals. Especially on Synthetic. Just wait till the good ole "Maintenance required light starts a flashin"
At 5K just skip the synthetic then as well. Isn't the whole point of synthetic to last at least 2x as long as regular oil?
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Old 11-19-12, 10:43 AM
  #67  
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if you really want to determine the change interval you should do oil analysis (e.g. blackstone).
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Old 11-20-12, 12:36 PM
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Originally Posted by kickin8
if you really want to determine the change interval you should do oil analysis (e.g. blackstone).
^ This. Debate may be endless but you can't argue against a UOA (better yet, regular UOA's versus a one-off).

Originally Posted by LexiRX
At 5K just skip the synthetic then as well. Isn't the whole point of synthetic to last at least 2x as long as regular oil?
It's one benefit but not "the whole point". There are certainly other benefits.
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