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Discussion Starter · #1 ·
I bought a quart of 5-20 SYNTEC that says it meets Fords spec.
Ford spec wss-m2c930-a, wss-m2c153-h.

I don't think this is the correct oil for the GT500, as I remember someone mentioning B spec somewhere.

Can someone set me straight on the correct SYNTEC to use. Thank,Gordon
 

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Our cars call for 5w-50, not 5w-20. There have been loads of threads on this subject, and whether Syntec meets the Ford spec. You'll get as many yes's as no's. Personally I've been using it since day 1 and never had any problems.
 

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I have changed the oil 3 times in my car now and I have used Cadtrpl Syntec 5w-50 each time.
 
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