What type of oil to use on 99' Cobra - MustangForums.com


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Old 10-28-2010, 12:45 PM   #1
stanglx2.3
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Default What type of oil to use on 99' Cobra

I was wondering what is the best type of oil for my 1999 Cobra. It has 140,000 miles and is a daily driver. Should I use different oil different times of the year? I also have a slight leak from my valve cover gasket (havent had time to replace yet) so I was thinking maybe a thickier oil. Also I usually use the motor craft OEM filter. Any input is appreciated. Thanks


P.S. I live in North Carolina, (for tempature ranges)

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Old 10-28-2010, 12:53 PM   #2
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A 5w-30 would fit your app. all year round.
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Old 10-28-2010, 04:24 PM   #3
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yes i also agree 5w30...you can go with synthetic as a better oil but once you go synthetic your not supposed to go back!!
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Old 10-28-2010, 04:53 PM   #4
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That's just a myth, I switch between the two all the time. Oils today are made to be compatible with each other.
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Old 10-28-2010, 04:54 PM   #5
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I'd go with Mobil 1 5w30
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Old 10-30-2010, 01:02 PM   #6
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Quote:
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I'd go with Mobil 1 5w30
+1 or RP
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Old 10-31-2010, 04:51 PM   #7
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I literally just got done changing oil and filters on my 2 97 cobras about an hour ago. I used Castrol 5w-30 Full Synthetic
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Old 10-31-2010, 06:47 PM   #8
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Quote:
Originally Posted by Blackvenom01 View Post
yes i also agree 5w30...you can go with synthetic as a better oil but once you go synthetic your not supposed to go back!!
I wouldn't say synthetic is a better oil, it just lasts longer, it boils down to if you want to change your oil every 3 or 5000 miles. If you can do 2 oil changes with a dino oil for the price of 1 synthetic you might as well go with a dino oil.
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Old 11-02-2010, 12:17 AM   #9
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If it were me I would use Mobil 1 10W30 with a Motorcraft oil filter.
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Old 11-02-2010, 05:38 AM   #10
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what im gonna do from now on is just use the RP oil filter and keep going with the mobil 1...royal purples filters are top of the line i did some research on it and compared them to mobils and they really are the best IMO....im just the kind of person that wants to put the best i can in my car even if it is sorta unneeded....i still havent doin RP oil though i cant bring myself to paying that much lol
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