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GM parts number for Mobil 1 oil cap ?

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Old 01-16-2015, 01:04 PM
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surfnkd
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Default GM parts number for Mobil 1 oil cap ?
With so many part numbers out there, for those who changed their Dexos oil cap to Mobil 1, which GM part number are you using?
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Old 01-16-2015, 01:07 PM
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Zymurgy
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Z51 and non-Z51 use two different oil caps.
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Old 01-16-2015, 01:16 PM
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surfnkd
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Originally Posted by Zymurgy
Z51 and non-Z51 use two different oil caps.
I'm non-Z51.
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Old 01-16-2015, 01:47 PM
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mikez06
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Originally Posted by Zymurgy
Z51 and non-Z51 use two different oil caps.
What do the non-Z51s use? Mine is Z51 and says the dreaded: Dexos
(Will never use semi-synthetic...ever.)
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Old 01-16-2015, 02:18 PM
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Originally Posted by mikez06
What do the non-Z51s use? Mine is Z51 and says the dreaded: Dexos
(Will never use semi-synthetic...ever.)


Dexos is a specification, not a product. There are both semi-synthetics and full synthetics that are Dexos Certified.
Dexos 1 Certified Oils
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Old 01-16-2015, 02:22 PM
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Originally Posted by Zymurgy
Dexos is a specification, not a product. There are both semi-synthetics and full synthetics that are Dexos Certified.
Dexos 1 Certified Oils
I hear ya on that. I never said I wanted 'only' Mobil 1. I want FULL synthetic. Yes, that can be Dexos-specific. But we do get Mobil 1.
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Old 01-16-2015, 02:43 PM
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surfnkd
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I see several folks are using 12593356. They are Z06's and Z51's.
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Old 01-16-2015, 07:44 PM
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EcoBrick Bob
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I believe that the Mobil 1 cap is actually a decal that you put on your cap.

Don't know where to find it for sale....
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Old 01-16-2015, 08:06 PM
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sting15ray
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Here's the thread on the stickers ...
https://www.corvetteforum.com/forums...post1588729015
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Old 01-17-2015, 09:57 AM
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I just ordered one for my Z51. For those with a dry sump engine, the reservoir cap is for a 2013 C6 used on both Chevs and Cads. It's an AC Delco FC215 (#12583570). Check one out on EBay. Mine is costing me $18.32.
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Old 01-17-2015, 10:18 AM
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grandpawmoses
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Which is the correct cap part number for the Z51?
I've seen 12593356. FC221
and 12583570. FC215
Both listed in this thread.
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Old 01-17-2015, 11:16 AM
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Stan0324
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Originally Posted by grandpawmoses
Which is the correct cap part number for the Z51?
I've seen 12593356. FC221
and 12583570. FC215
Both listed in this thread.
part number 12593356 only list replacement for Cadillac

part number 12583570 list replacement for Cadillac and Corvette

Found an online vendor selling them for $16.81, plus they show a color picture of what you are getting. C7 is not listed, but later model C6's with dry sump is.
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Old 01-17-2015, 11:29 AM
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blue max
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Originally Posted by sting15ray
here's the thread on the stickers ...
https://www.corvetteforum.com/forums...post1588729015
war eagle
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Old 01-17-2015, 12:03 PM
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Originally Posted by Stan0324

part number 12583570 list replacement for Cadillac and Corvette
but this does not fit the non-Z51, right?

Is there a part # for non-Z51?
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Old 01-17-2015, 12:15 PM
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FlashofRed
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Here is the link to ACDelco FC215 on Amazon.

Amazon.com: ACDelco FC215 GM Original Equipment Engine Oil Filler Cap: Automotive Amazon.com: ACDelco FC215 GM Original Equipment Engine Oil Filler Cap: Automotive
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Old 01-17-2015, 11:22 PM
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it says this does not fit a 2014 Corvette.
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Old 01-18-2015, 01:35 AM
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Bavaria
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I understand GM has now directed Mobil1 be used in both 'base' and Z51's. Makes this issue moot.
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Old 01-18-2015, 01:58 AM
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CdnC7
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Originally Posted by Bavaria
I understand GM has now directed Mobil1 be used in both 'base' and Z51's. Makes this issue moot.
Is this a fairly new direction?
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Old 01-18-2015, 11:35 AM
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Originally Posted by TNSQUIRE
it says this does not fit a 2014 Corvette.
Oops...My bad.
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Old 01-18-2015, 11:47 AM
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grandpawmoses
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Originally Posted by Stan0324
part number 12583570 list replacement for Cadillac and Corvette
C7 is not listed, but later model C6's with dry sump is.
I have a positive balance on PayPal so I ordered one. I'll post if it fits or not.
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