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Anybody know about Chevy Impala 3.5L oil? #4455249
07/10/17 11:31 AM
07/10/17 11:31 AM
Joined: Jul 2014
Posts: 557
Wisconsin
Srt20 Offline OP
Srt20  Offline OP
Joined: Jul 2014
Posts: 557
Wisconsin
I inherited a 2006 Chevy Impala 3.5L V-6. Has 41,800 miles. First car in along time. First Chevy in a long time.

Was my grandmothers car, she had a indy shop do maintenance, which I have no records of other than the OCI sticker on the windshield. Looks like every 3K was changed.

I don't know if this engine is hard or easy on oil. Its a pushrod VVT engine.

My wife is going to drive it for work. Mostly will be highway miles, min of 20 miles one way, half will probably be 150+ miles one way. I plan on 10K OCI using probably M1 or PPPP, easiest to find here. Probably use a Fram Ultra.


Anybody see any issues with this plan? Or better recommendations? I don't know anything about the Dexos certs, so not sure if I need to make sure I use a Dexos oil?

Thanks

Re: Anybody know about Chevy Impala 3.5L oil? [Re: Srt20] #4455251
07/10/17 11:34 AM
07/10/17 11:34 AM
Joined: Jul 2007
Posts: 4,336
Midwest USA
LoneRanger Offline
LoneRanger  Offline
Joined: Jul 2007
Posts: 4,336
Midwest USA
5 qt jug of Quaker State (SOPUS) syn-blend DEXOS1 licensed $16.97 + tax @ walmart.




'09 Subaru Forester ...................(QS HM 5W30)
'16 Moto Guzzi Stelvio 1200 .....(ENI i-Ride PG 10W60)
Re: Anybody know about Chevy Impala 3.5L oil? [Re: Srt20] #4455254
07/10/17 11:39 AM
07/10/17 11:39 AM
Joined: Dec 2002
Posts: 1,614
North Carolina
Rat407 Offline
Rat407  Offline
Joined: Dec 2002
Posts: 1,614
North Carolina
It doesn't need the dexos 1 oil but it wouldn't hurt to run it.

I change the oil on a friends 2011 Impala with the same motor and it has 145k on it. I started changing it at 45k and around 120k it started to use oil. They would go by the OLM and it would usually be around 7 to 8k on oil changes. I noticed that the last few oil changes when it came in it was low on oil by half a qt. They started using AC delco oil filters with AMOIL's OE 5w-30 at 45k and that is it's steady diet.


2002 Silverado 5.3 0w-20 AMSOIL
Re: Anybody know about Chevy Impala 3.5L oil? [Re: Srt20] #4455264
07/10/17 11:46 AM
07/10/17 11:46 AM
Joined: Jun 2016
Posts: 3,566
MN
oil_film_movies Offline
oil_film_movies  Offline
Joined: Jun 2016
Posts: 3,566
MN
Originally Posted By: Srt20
My wife is going to drive it for work. Mostly will be highway miles, min of 20 miles one way, half will probably be 150+ miles one way. I plan on 10K OCI using probably M1 or PPPP, easiest to find here. Probably use a Fram Ultra.


Good plan. Those good oils are of course already dexos1 approved, a higher level of performance than plain old SN GF-5 oils.
Fram Ultra is good plan, agreed.
The car's OLM is very good at predicting oil degradation, so go by that exactly, a sophisticated algorithm takes into account necessary variables to alert you when to change.
Another dexos1 full-synthetic is https://www.walmart.com/ip/Milesyn-SXR-5...-of-12/49107856 which comes out to about $1.85 per quart with tax.

Re: Anybody know about Chevy Impala 3.5L oil? [Re: Srt20] #4455269
07/10/17 11:52 AM
07/10/17 11:52 AM
Joined: Apr 2013
Posts: 123
-
VetteElite Offline
VetteElite  Offline
Joined: Apr 2013
Posts: 123
-
Great engines which seem to be pretty easy on oil, but with a pretty small (4 qt) sump. I have 130,000 on mine (in a Saturn Aura) and engine is still running great especially with new spark plugs. The 4T45e transmission, on the other hand.... Has a reputation of lasting forever even with jarring, slamming shifts, but definitely isn't fun to deal with in city driving.

Last edited by VetteElite; 07/10/17 11:52 AM.
Re: Anybody know about Chevy Impala 3.5L oil? [Re: Srt20] #4455282
07/10/17 12:07 PM
07/10/17 12:07 PM
Joined: May 2006
Posts: 4,045
Central Wisconsin
dwendt44 Online content
dwendt44  Online Content
Joined: May 2006
Posts: 4,045
Central Wisconsin
Push rod engine with VVT?


There's no such thing as:
Too big of a battery,
Too large of a gas tank,
or too loud of a horn,
or too bright headlights.
Re: Anybody know about Chevy Impala 3.5L oil? [Re: dwendt44] #4455284
07/10/17 12:09 PM
07/10/17 12:09 PM
Joined: Apr 2013
Posts: 123
-
VetteElite Offline
VetteElite  Offline
Joined: Apr 2013
Posts: 123
-
Originally Posted By: dwendt44
Push rod engine with VVT?


Yep. This engine was the first ever, I believe.

Re: Anybody know about Chevy Impala 3.5L oil? [Re: Srt20] #4455386
07/10/17 02:13 PM
07/10/17 02:13 PM
Joined: Apr 2016
Posts: 1,198
Campbellsville, KY
Alex_V Offline
Alex_V  Offline
Joined: Apr 2016
Posts: 1,198
Campbellsville, KY
As said previously, not terribly hard on oil AFAIK but not a huge sump for the size of the engine. 7,500-10K highway miles on full syn shouldn't be a problem. Only non-standard repairs I've done to a 3.5 are an oil pan gasket/fromt motor mount (250K-mile Uplander) and the oil filter adapter gasket on an '05 Malibu. I believe the 3.5 was better but not completely out of the woods of the 3.1/3.4's propensity to blow any number of cooling system components and usually head gaskets immediately after, so keep that system checked up on.

Last edited by Alex_V; 07/10/17 02:13 PM.

To quote a friend, "Synthetics, man."

'85 GMC C3500, 454, 132K
'82 Mercedes 300CD, OM617 turbo, 173K (totaled 2018, in rehab)
'85 Mercedes 300TD, OM617 turbo, 217K (wife's)
'67 Suburban, 350, 331K
Re: Anybody know about Chevy Impala 3.5L oil? [Re: VetteElite] #4455433
07/10/17 03:09 PM
07/10/17 03:09 PM
Joined: Jul 2014
Posts: 557
Wisconsin
Srt20 Offline OP
Srt20  Offline OP
Joined: Jul 2014
Posts: 557
Wisconsin
Originally Posted By: VetteElite
Great engines which seem to be pretty easy on oil, but with a pretty small (4 qt) sump. I have 130,000 on mine (in a Saturn Aura) and engine is still running great especially with new spark plugs. The 4T45e transmission, on the other hand.... Has a reputation of lasting forever even with jarring, slamming shifts, but definitely isn't fun to deal with in city driving.


Looks like the Impalas along with the other heavy gm cars got the 4T65e trans. Though it looks like it suffers the same kind of quirks as the 4T45e.

Re: Anybody know about Chevy Impala 3.5L oil? [Re: Srt20] #4455435
07/10/17 03:11 PM
07/10/17 03:11 PM
Joined: Jul 2014
Posts: 557
Wisconsin
Srt20 Offline OP
Srt20  Offline OP
Joined: Jul 2014
Posts: 557
Wisconsin
I didn't know its only 4 qts. Maybe I will go by the OLM for the first OCI and see how it goes.

Re: Anybody know about Chevy Impala 3.5L oil? [Re: Srt20] #4455510
07/10/17 04:36 PM
07/10/17 04:36 PM
Joined: Apr 2016
Posts: 1,198
Campbellsville, KY
Alex_V Offline
Alex_V  Offline
Joined: Apr 2016
Posts: 1,198
Campbellsville, KY
Originally Posted By: Srt20
I didn't know its only 4 qts. Maybe I will go by the OLM for the first OCI and see how it goes.


I believe the OLM in that Malibu tripped in the 6-7K range, so that could be a good place to start. And I haven't known the 4T65 to be a problematic trans.


To quote a friend, "Synthetics, man."

'85 GMC C3500, 454, 132K
'82 Mercedes 300CD, OM617 turbo, 173K (totaled 2018, in rehab)
'85 Mercedes 300TD, OM617 turbo, 217K (wife's)
'67 Suburban, 350, 331K
Re: Anybody know about Chevy Impala 3.5L oil? [Re: Srt20] #4455555
07/10/17 05:36 PM
07/10/17 05:36 PM
Joined: Nov 2004
Posts: 7,797
Texas
GMBoy Offline
GMBoy  Offline
Joined: Nov 2004
Posts: 7,797
Texas
I would definitely go by the oil life monitor. You could use practically any oil in that engine and it would be happy. I would use Mobil 1 or even Supertech Syn and be fine with it.

Re: Anybody know about Chevy Impala 3.5L oil? [Re: Srt20] #4455965
07/11/17 07:03 AM
07/11/17 07:03 AM
Joined: Jan 2008
Posts: 3,325
Central Iowa
TiredTrucker Offline
TiredTrucker  Offline
Joined: Jan 2008
Posts: 3,325
Central Iowa
Unless the OLM has not been reprogrammed by the dealer. The one on my 2006 Cadillac had to be reprogrammed to a lower interval because so many other folks with the 3.6 engine had experienced various problems that GM realized the OLM was set too long. I never use it anyway.


Freedom is not about having the choice to do what you want, but the choice to do what you ought.
Re: Anybody know about Chevy Impala 3.5L oil? [Re: TiredTrucker] #4456101
07/11/17 09:55 AM
07/11/17 09:55 AM
Joined: Nov 2004
Posts: 7,797
Texas
GMBoy Offline
GMBoy  Offline
Joined: Nov 2004
Posts: 7,797
Texas
Originally Posted By: TiredTrucker
Unless the OLM has not been reprogrammed by the dealer. The one on my 2006 Cadillac had to be reprogrammed to a lower interval because so many other folks with the 3.6 engine had experienced various problems that GM realized the OLM was set too long. I never use it anyway.



That re-programming for OLM was exclusive to the 3.6L only and was an attempt to reduce timing chain failures.

Re: Anybody know about Chevy Impala 3.5L oil? [Re: Srt20] #4456176
07/11/17 10:59 AM
07/11/17 10:59 AM
Joined: Feb 2009
Posts: 528
Minnesota
Huie83 Offline
Huie83  Offline
Joined: Feb 2009
Posts: 528
Minnesota
The 3.5 in that era Impala is not a VVT engine. The 3.6 in the 2011 and up is a VVT engine.

I have the 3.5 in our 2010 Impala. I run either a syn blend or a full syn with the ACDelco filters per the OLM and it's been fine. Just passed 120K miles on ours this past week. It does use about a quart between changes so I keep a close eye on it. Like others have said, it's only a 4 quart sump.

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