GT Performance Mods 2005+ Mustang GT Performance and Technical Information

Is 5W30 oil ok?

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Old 5/16/07, 06:49 PM
  #21  
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Glad to see I'm not the only one fighting the lemming mentality :P

Anyways, if your oil isn't black it's not really doing it's job.

The pics attached were after my first oil change, at approx 700kms on the ODO. Mini chunks...(excuse the stray golden retriever hair that flew in)

k
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Old 5/17/07, 02:34 AM
  #22  
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MPG Still Good with 5W30

Originally Posted by theedge67
I'm using 5-30 in mine for an experiment. I used 5-20 Mobil1 last time and had an oil analysis. Showed high iron and copper readings. I'm trying 5-30 to see if the readings come down. Car runs fine, just as good as it did before, gas mileage is only down like 1mpg.
I put in 5W30 Mobil 1 at my last oil change by accident too. My Mileage is just the same as it was before I didnt see a 1MPG drop though. It's running about 24.8 mpg country driving to and from work. I drive it pretty easy most of the time just putting my foot in it every once in a while. I am going back to the 5W20 Mobil1 next time though. I can use all the MPG I can get!
Old 5/17/07, 06:34 AM
  #23  
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I'm thinking about using Royal Purple for my next oil change. I called the local parts store and they can order it for $6.98 a quart. Is that the going price out there? Thanks.
Old 5/17/07, 09:18 AM
  #24  
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Originally Posted by RKNMACH
I'm thinking about using Royal Purple for my next oil change. I called the local parts store and they can order it for $6.98 a quart. Is that the going price out there? Thanks.
yep, that's a pretty good price!
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