Recent Topics
Out autozone score
by KenO
2 minutes 13 seconds ago
What's everyone's AZ plan tomorrow?
by Alltherage
26 minutes 53 seconds ago
Starter gone?
by lawman1909
59 minutes 48 seconds ago
Another Castrol surprise - Import MV ATF
by aa1986
Today at 07:39 PM
How old is the Castrol Edge?
by stygz
Today at 07:32 PM
185/60/14 with 195/70/14
by GreeCguy
Today at 06:49 PM
Bloomberg article on Techron
by chiefsfan1
Today at 06:43 PM
38% of the earth is made of .... Bridgmanite???
by aa1986
Today at 06:33 PM
1998 Buick Century Custom Steering 56k miles
by Gito
Today at 06:29 PM
Price Check...4Runner
by klt1986
Today at 06:13 PM
Quaker State score at Autozone!
by RamFan
Today at 05:08 PM
Anyone that can read Chinese or Japanese??
by Darwin1138
Today at 04:10 PM
Newest Members
NicTesla, nardbuster, AMG1967, Stillbreathing, Reflex
52266 Registered Users
Who's Online
127 registered (Alltherage, 147_Grain, aa1986, 74DartSport, 2010_FX4, 12 invisible), 1422 Guests and 237 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
52266 Members
66 Forums
223813 Topics
3550130 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#3338131 - 04/09/14 08:17 PM New valve lifters installed....short OCI??
SuperEd73 Offline


Registered: 08/14/07
Posts: 207
Loc: Glen Cove, NY
Hello BITOGers,

It has been a while since I've posted but I now have a question where I'd like to get some opinions.

My 2009 Pontiac G8-GT (L-76 6.0L V8 with active fuel management) just had new valve lifters installed by the dealer because the original set began to tick pretty noticeably upon startup and when the engine was cold. In order to reach the lifters on that engine, the intake manifold and cylinder heads were removed. So, new lifters, new head gaskets, new valve cover and intake gaskets as well as new oil and Dex-Cool.

With all of that said, should I do an early oil change, maybe 1,000-1,500 miles out, or should I just follow the OLM and not worry about it?

Thanks!

Ed B.
_________________________
09 Pontiac G8GT - 88,400 mi, Castrol Syntec 5W-30/Fram Ultra Synthetic Filter

68 Dodge Polara - 146,500 mi -

Top
#3338136 - 04/09/14 08:19 PM Re: New valve lifters installed....short OCI?? [Re: SuperEd73]
Eddie Offline


Registered: 12/07/03
Posts: 6856
Loc: Florida, Cape Coral
Follow the OLM whould be thee way I'd go. Ed
_________________________
CX5 Touring 2.5L :-)

Top
#3338155 - 04/09/14 08:31 PM Re: New valve lifters installed....short OCI?? [Re: SuperEd73]
901Memphis Offline


Registered: 08/14/10
Posts: 6366
Loc: Northern Kentucky
Engine was open and exposed to contamination, dump early.
_________________________
1999 Ford Taurus 146k (Vulcan v6) - M1 High Mileage 5w30 | Fram Ultra XG 3600
2002 Buick Century 105k - Peak 5w30 / Fram Ultra XG 3980 / Filter mag

Top
#3338193 - 04/09/14 09:02 PM Re: New valve lifters installed....short OCI?? [Re: SuperEd73]
Ram01 Offline


Registered: 10/13/10
Posts: 674
Loc: New York Queens
Dump early and start using a hm oil

Top
#3338199 - 04/09/14 09:11 PM Re: New valve lifters installed....short OCI?? [Re: 901Memphis]
yonyon Offline


Registered: 03/06/12
Posts: 3492
Loc: NJ, USA
Originally Posted By: 901Memphis
Engine was open and exposed to contamination, dump early.


plus eleventy

The heads heads were off.

Top
#3338307 - 04/09/14 11:48 PM Re: New valve lifters installed....short OCI?? [Re: SuperEd73]
Merkava_4 Offline


Registered: 01/30/07
Posts: 9814
Loc: Clovis, CA
Originally Posted By: SuperEd73
My 2009 Pontiac G8-GT (L-76 6.0L V8 with active fuel management) just had new valve lifters installed by the dealer because the original set began to tick pretty noticeably upon startup and when the engine was cold.


Did the dealer happen to know WHY the lifters were ticking badly on cold startup ?

Top
#3338402 - 04/10/14 06:07 AM Re: New valve lifters installed....short OCI?? [Re: Merkava_4]
SuperEd73 Offline


Registered: 08/14/07
Posts: 207
Loc: Glen Cove, NY
Merkava,

Upon inspection they said the lifters showed excessive wear. But, GM has a long standing TSB out there regarding valve lifter wear problems on that series of engine. I also am on a couple of G8 owner forums and there are many reports of premature lifter failure. GM actually redesigned the lifters after my car was built. I managed to get over 80,000 on them before I really thought it was bad but other owners have reported lifter failures at much lower mileage totals.

Ed B.
_________________________
09 Pontiac G8GT - 88,400 mi, Castrol Syntec 5W-30/Fram Ultra Synthetic Filter

68 Dodge Polara - 146,500 mi -

Top
#3338515 - 04/10/14 08:51 AM Re: New valve lifters installed....short OCI?? [Re: SuperEd73]
meep Offline


Registered: 02/20/07
Posts: 2533
Loc: Southeast
I would do a half-interval OCI, then go to normal. I would not worry about HM oil.
_________________________
2006 Tundra 2wd
2002 MDX (wifey!)
2003 town and country, in various state of repair

Top
#3338593 - 04/10/14 10:09 AM Re: New valve lifters installed....short OCI?? [Re: SuperEd73]
Oldmoparguy1 Offline


Registered: 01/21/05
Posts: 4119
Loc: Charlotte, NC
The lifters were worn?? What about the camshaft??
_________________________
"Political language is designed to make lies sound truthful and murder respectable, and to give an appearance of solidity to pure wind." George Orwell

Top
#3338594 - 04/10/14 10:10 AM Re: New valve lifters installed....short OCI?? [Re: SuperEd73]
Oldmoparguy1 Offline


Registered: 01/21/05
Posts: 4119
Loc: Charlotte, NC
The lifters were worn?? What about the camshaft??
_________________________
"Political language is designed to make lies sound truthful and murder respectable, and to give an appearance of solidity to pure wind." George Orwell

Top
#3339458 - 04/11/14 06:27 AM Re: New valve lifters installed....short OCI?? [Re: Oldmoparguy1]
SuperEd73 Offline


Registered: 08/14/07
Posts: 207
Loc: Glen Cove, NY
Well the lifters are the roller type so cam wear is not a problem (at least according to GM). I believe it is more of a problem with the lifters partially collapsing which is causing the ticking and in some cases I've heard about, it'll get bad enough where the engine starts throwing trouble codes.

Ed B.
_________________________
09 Pontiac G8GT - 88,400 mi, Castrol Syntec 5W-30/Fram Ultra Synthetic Filter

68 Dodge Polara - 146,500 mi -

Top
#3339958 - 04/11/14 04:13 PM Re: New valve lifters installed....short OCI?? [Re: SuperEd73]
TiredTrucker Offline


Registered: 01/04/08
Posts: 1203
Loc: Kellogg, IA
One of the problems with AFM equipped GM engines. Those lifters are oil controlled to shut off cylinders. The AFM actuators disallow, or allow, oil into the AFM lifters to either have them collapse and shut off that cylinder, or keep oil in the lifter to have them function normally. All it takes is some oil coking or deposits build up in those lifters and they start goofing up. I disabled the AFM right out of the gate when I bought my 2013 Silverado as a preemptive strike against these kinds of failures.

Agree with most here... if the engine is opened up, dump oil early. I dump early on a new engine from the factory. Just me.
_________________________
Hey there, VA, what do ya say? How many vets did you kill today?

Top