3.9 Oil Capacity? - Pontiac G6 Forum
 
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post #1 of 15 (permalink) Old 11-20-2005, 06:54 PM Thread Starter
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3.9 Oil Capacity?

Does anyone know the oil capacity for the 3.9? It's not mentioned in the owner's manual anywhere I can find. The 2 times I've changed it I put in 4.5 quarts and that seems to look OK on the confusing dipstick. But I would like to know for sure.

Thanks
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post #2 of 15 (permalink) Old 11-21-2005, 12:04 AM
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Quote:
Originally Posted by MP2
Does anyone know the oil capacity for the 3.9? It's not mentioned in the owner's manual anywhere I can find. The 2 times I've changed it I put in 4.5 quarts and that seems to look OK on the confusing dipstick. But I would like to know for sure.

Thanks
Direct from the owner's manual:
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post #3 of 15 (permalink) Old 11-21-2005, 12:32 PM
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WTF?

My manual says 4.5 quarts for the 3.5L...
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post #4 of 15 (permalink) Old 11-21-2005, 01:18 PM
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MP2 - I as well put 4.5 quarts in my GTP. that's right as far as I'm concerned
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post #5 of 15 (permalink) Old 11-21-2005, 03:25 PM Thread Starter
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Very interesting. I triple checked my manual and that page just isn't there. Hmm..... interesting. Maybe it's like my window sticker "not available at time of delivery."
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post #6 of 15 (permalink) Old 11-21-2005, 06:27 PM
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My GTP took 4.5 also

2006 Crimson Red GTP Coupe
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post #7 of 15 (permalink) Old 11-22-2005, 02:23 AM
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Quote:
Originally Posted by MP2
Very interesting. I triple checked my manual and that page just isn't there. Hmm..... interesting. Maybe it's like my window sticker "not available at time of delivery."
I pulled that page from the 2006 electronic manual. I also double checked my paper one, and it's there. Your car profile shows you own an 06, if that's the case, I CANNOT explain this one! Odd....

Last edited by ragingfish; 11-22-2005 at 02:25 AM.
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post #8 of 15 (permalink) Old 11-22-2005, 01:21 PM
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This ranks up there with the multiple air filter/airbox screw-up early in the '05 production run.
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post #9 of 15 (permalink) Old 11-24-2005, 11:52 AM
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Care to explain that air filter screw up? My car is a from a feb 05 run?
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post #10 of 15 (permalink) Old 11-27-2005, 11:51 AM
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Quote:
Originally Posted by Billabongi
Care to explain that air filter screw up? My car is a from a feb 05 run?
There are two types of airboxes and filters that were used in the early '05 models. One is big (new part number for the G6 - A2930C) and the other is small (listed in the owner's manual, also used on the 2.2L Sunfire - A1615C). No idea why.

The "long" story:
http://www.g6board.com/board/viewtop...188&highlight=
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post #11 of 15 (permalink) Old 07-25-2006, 07:57 AM
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Hey, another quick Question, what is the right Oil Filter. Seems the one my mechanic is putting in is really small. I know a 3.9 L engine cant be taking such a small Oil Filter
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post #12 of 15 (permalink) Old 07-25-2006, 03:52 PM
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Quote:
Originally Posted by gbgreatone
Hey, another quick Question, what is the right Oil Filter. Seems the one my mechanic is putting in is really small. I know a 3.9 L engine cant be taking such a small Oil Filter
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post #13 of 15 (permalink) Old 07-25-2006, 04:11 PM
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yep most GM oil filters are pretty small.
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post #14 of 15 (permalink) Old 07-25-2006, 06:08 PM
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For whatever reason, the factory and dealers use a longer length filter than what the generic parts store brands give you. For example, FRAM always points to a tiny PH3387A for almost every GM engine... which is the same filter that they recommend for 2.5L Pontiac 6000's, 3400 SFI's, 3100 SFI's, etc etc. I always ended up using 3940 or something like that which is a long length one that has the same diameter face, so it screws right into place without a fuss. If you're not using a Delco filter, just match up a longer filter with the same mounting face as the smaller one.
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post #15 of 15 (permalink) Old 07-25-2006, 09:53 PM
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I used to use fram before finding out how bad they were, they were always the same size as the ac delcos and purolators that I also got. If that did happen, that's just another reason why they suck.
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