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#3186843 - 11/13/13 05:39 PM Oldsmobile Aurora 'Best' 10w30
sallc5 Offline


Registered: 04/05/13
Posts: 11
Loc: West Virginia, USA
Looking for opinions on which brand/type of oil to use. The common question haha...

I drive a 1996 Oldsmobile Aurora with 107,000. It has a 4.0L aluminum V8. Same engine as the Cadillac 4.6L Northstar with smaller displacement. The owners manual calls for 10w30 with Starburst label/API.



I currently reside in WV and this will be for a winter oil change. Temps are usually well below 60* once winter settles in. Although not quite there yet on a daily basis.

My drives are usually short city trips but often drive spiritedly. Ocassional 400 mile round trips once every couple months.

My vehicle currently doesn't have any problems other burning losing about a quart of between changes. This is very common for these engines. Oil pressure is A okay.

Currently using Valvoline Maxlife 10w-30 at all times. With 3000 mile OCI regardless. Was comtemplating switching to Rotella T5 10w-30.

Just looking for an opinion on what the 'best' winter and summer oil would be! I appreciate the insight and enjoy reading forum posts around here. If need any more info please let me know. Thank you.


Edited by sallc5 (11/13/13 05:43 PM)

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#3186856 - 11/13/13 05:55 PM Re: Oldsmobile Aurora 'Best' 10w30 [Re: sallc5]
y_p_w Offline


Registered: 05/06/05
Posts: 2741
Loc: SF Bay Area
Originally Posted By: sallc5
I drive a 1996 Oldsmobile Aurora with 107,000. It has a 4.0L aluminum V8. Same engine as the Cadillac 4.6L Northstar with smaller displacement. The owners manual calls for 10w30 with Starburst label/API.

I think we've gone over this before, but "same block" would probably be more descriptive and accurate. One criticism about the Aurora engine was that the smaller bore (compared to Northstar engines) increased the weight of the block.

I'd be tempted to simply use a modern 5W-30 year round. The reasons why a 10W-30 was spec'ed (probably volatility and VI improver breakdown) are no longer an issue with modern motor oils.

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#3186857 - 11/13/13 05:55 PM Re: Oldsmobile Aurora 'Best' 10w30 [Re: sallc5]
dave1251 Offline


Registered: 07/15/05
Posts: 7637
Loc: Maricopa, AZ
It seems like Maxlife has served you well. I would not change other than extending your OCI to at least 5K. 3K is such waste unless you idled your Aurora greater than 50% of the time it is in use.
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#3186859 - 11/13/13 05:58 PM Re: Oldsmobile Aurora 'Best' 10w30 [Re: sallc5]
GutsyGecko Offline


Registered: 08/16/12
Posts: 426
Loc: Youngstown, OH
Get whatever 5w-30 is cheapest for 3k oci's.

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#3186873 - 11/13/13 06:06 PM Re: Oldsmobile Aurora 'Best' 10w30 [Re: sallc5]
sallc5 Offline


Registered: 04/05/13
Posts: 11
Loc: West Virginia, USA
So, you fellas are saying 5w30 all year around...?

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#3186877 - 11/13/13 06:10 PM Re: Oldsmobile Aurora 'Best' 10w30 [Re: sallc5]
TFB1 Offline


Registered: 09/03/10
Posts: 2883
Loc: VA
Originally Posted By: sallc5
So, you fellas are saying 5w30 all year around...?


Yup or at least for the winter fill... A 0W-30 would be better yet...

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#3186879 - 11/13/13 06:11 PM Re: Oldsmobile Aurora 'Best' 10w30 [Re: sallc5]
AP9 Offline


Registered: 07/10/13
Posts: 227
Loc: Chicago suburbs
I don't see any harm in doing so. 17 years ago, 5W-30 oils were less shear-stable than the ones of today.
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#3186893 - 11/13/13 06:22 PM Re: Oldsmobile Aurora 'Best' 10w30 [Re: sallc5]
Greggy_D Offline


Registered: 03/03/05
Posts: 1536
Loc: Near Ann Arbor, Michigan
Originally Posted By: sallc5
So, you fellas are saying 5w30 all year around...?


Yep.
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#3186920 - 11/13/13 06:43 PM Re: Oldsmobile Aurora 'Best' 10w30 [Re: sallc5]
aquariuscsm Offline


Registered: 12/30/06
Posts: 11610
Loc: South Texas,USA
Keep using the Valvoline 10W30.
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#3186934 - 11/13/13 06:56 PM Re: Oldsmobile Aurora 'Best' 10w30 [Re: aquariuscsm]
TFB1 Offline


Registered: 09/03/10
Posts: 2883
Loc: VA
Originally Posted By: aquariuscsm
Keep using the Valvoline 10W30.


I would in S TX but NOT WV...

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#3186958 - 11/13/13 07:14 PM Re: Oldsmobile Aurora 'Best' 10w30 [Re: sallc5]
901Memphis Offline


Registered: 08/14/10
Posts: 8404
Loc: Northern Kentucky
PYB 5w30 should be good for 5k. It has more TBN than Valvoline which make it suitable for longer runs.

Maxlife should be good for 5k anyways.
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#3186969 - 11/13/13 07:20 PM Re: Oldsmobile Aurora 'Best' 10w30 [Re: Greggy_D]
BobsArmory Offline


Registered: 03/28/10
Posts: 768
Loc: Home of the CTS-V
Originally Posted By: Greggy_D
Originally Posted By: sallc5
So, you fellas are saying 5w30 all year around...?


Yep.


Yep Yep.. Max Life
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#3186983 - 11/13/13 07:36 PM Re: Oldsmobile Aurora 'Best' 10w30 [Re: sallc5]
95busa Offline


Registered: 10/15/05
Posts: 1234
Loc: Tennessee
Doesn't matter a whole lot
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#3187056 - 11/13/13 08:35 PM Re: Oldsmobile Aurora 'Best' 10w30 [Re: sallc5]
daves87rs Offline


Registered: 02/23/09
Posts: 14543
Loc: Michigan
Originally Posted By: sallc5
So, you fellas are saying 5w30 all year around...?


Yep, and just keep with the maxlife....
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“The Only Thing Necessary for the Triumph of Evil is that Good Men Do Nothing.”

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#3187060 - 11/13/13 08:42 PM Re: Oldsmobile Aurora 'Best' 10w30 [Re: sallc5]
Boss302fan Offline


Registered: 11/07/09
Posts: 2165
Loc: Oconomowoc Wi
My son had one and it ran great on Shell Rotella 10W30. I think it is a semi syn oil. Could also try Defy...
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