synthetic oil - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 4 Old 05-05-2002, 08:18 PM Thread Starter
 
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synthetic oil

bought a s/c sat wanting to run synthetic in the car now. is it alright to switch from 5w-20 to somthing else? was looking at royal purple. if so what weight should i use?

oh and what sparkplugs should i go with? i thought i was told to go 2 steps colder is that right? and someone said iridium.


Last edited by black01gtcoupe; 05-06-2002 at 05:38 PM.
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post #2 of 4 Old 05-06-2002, 05:40 PM Thread Starter
 
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anyone?

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post #3 of 4 Old 05-06-2002, 06:27 PM
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I want to know the same thing about the oil. I am supercharged now and I need an oil change in about 1,000 miles. I have 40,000 miles on my stang and want to know if I can just switch over to synthetic and what weight????
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post #4 of 4 Old 05-06-2002, 10:53 PM
 
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Yes, you can still switch to synthetic. If you're S/C'd, I'd go for a higher weight, say 5w30 or even 5w40. I've read that the Cobra R comes stock with Mobil 1 15w50 in it. It won't hurt your engine, and with the higher temps you'll be experiencing in the combustion chamber, a higher weight oil will probably stand up better.
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