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#4609951 - 12/21/17 08:26 AM Amsoil Signature Series 5W-30
Ian1982 Offline


Registered: 01/04/16
Posts: 29
Loc: Ct,USA
Good morning everyone. What's everyone opinion on running a OCI of 15,000 miles (severe duty) with a GM 5.3 on Amsoil SS 5W-30 ? Who has experience with product with long OCI's? Thank you in advance and happy holidays everyone to you and your family.

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#4609962 - 12/21/17 08:37 AM Re: Amsoil Signature Series 5W-30 [Re: Ian1982]
demarpaint Offline


Registered: 07/03/05
Posts: 29758
Loc: NY
I'd get a UOA. I wouldn't run it, or any other oil for that matter that long under severe service conditions relying solely on blind faith.
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#4609968 - 12/21/17 08:41 AM Re: Amsoil Signature Series 5W-30 [Re: Ian1982]
Alex_V Offline


Registered: 04/10/16
Posts: 1155
Loc: Campbellsville, KY
Considering my father-in-law has been running about a 15K OCI (part of which qualifies as "severe") in his '03 1500HD (6.0) for the last 2 years/70,000 mi. - on syn blend Maxlife - I'm gonna say if you rack up the 15K in less than a year and your driving regimen is anything more than that of a taxi, it shouldn't be a problem.

FWIW, his truck now has somewhere over 275K on it and runs very well. I've been in the passenger seat when he put the accelerator to the floor in low range on his gravel drive, with my 3-ton camper behind us, and I'm still in disbelief that it didn't break something.
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I like Chevy and Valvoline.

'13 Cruze, 1.4T, 112K
'85 GMC C3500, 454, 130K
'82 Mercedes 300CD, OM617 turbo, 167K
'67 Suburban, 350, 331K

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#4609979 - 12/21/17 08:46 AM Re: Amsoil Signature Series 5W-30 [Re: Ian1982]
tig1 Offline


Registered: 01/03/09
Posts: 13660
Loc: Illinois
I am sure the Ams 5-30 will handle 15K for the average driver in the 5.3 with no problems. UOA not was never done. I have a friend that did 15-25K with reg M1 in his 1999 Silverado 5.3. Sold it when the 3rd trans failed. Another friend did 15-17K in his Dodge van with 190K. Sold it for a car. No reason for UOAs. What do you consider severe duty?


Edited by tig1 (12/21/17 08:48 AM)
_________________________
2007 Ford Fusion 227,000 miles
M1 0-20 EP
2017 Ford Fusion 49K
M1 0-20 EP
10,000 mile OCIs on both engines
M1 ATF and MC LV
M1 10-30 in all OPE
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#4609997 - 12/21/17 08:59 AM Re: Amsoil Signature Series 5W-30 [Re: tig1]
Ian1982 Offline


Registered: 01/04/16
Posts: 29
Loc: Ct,USA
I let it idle in the morning maybe a little too much and my trip to work is about 20 min. Mostly stop and go with about a 5 mile highway cruise in the middle . I was going on the conservative side of the duty cycle of Amsoil 25,000 OCI for Signature series. I could never go that many miles. 15K would be a stretch.

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#4610005 - 12/21/17 09:08 AM Re: Amsoil Signature Series 5W-30 [Re: Ian1982]
Alex_V Offline


Registered: 04/10/16
Posts: 1155
Loc: Campbellsville, KY
How often does the engine see more than 3,500 RPM or continued (more than 1/2 mile) use at more than 70% load? If the answer is "not often", your described driving schedule may fall close to the description of "severe" use in the manual, but you aren't pushing the capabilities of the LS.
_________________________
I like Chevy and Valvoline.

'13 Cruze, 1.4T, 112K
'85 GMC C3500, 454, 130K
'82 Mercedes 300CD, OM617 turbo, 167K
'67 Suburban, 350, 331K

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#4610063 - 12/21/17 10:09 AM Re: Amsoil Signature Series 5W-30 [Re: Ian1982]
CT8 Offline


Registered: 10/09/14
Posts: 10963
Loc: Idaho
Amsoil will do the job. Most buy Amsoil because they beleive all the hype except that it lasts longer in service. Does your engine fuel dilute the oil? That maybe the only caution point.
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#4610082 - 12/21/17 10:37 AM Re: Amsoil Signature Series 5W-30 [Re: Ian1982]
The Critic Online   crying


Registered: 08/30/04
Posts: 19802
Loc: CA
What 5.3 are we talking about? The older 5.3s were bulletproof. The newer 5.3s with AFM are a bit problematic and are an entirely different beast.
_________________________
2011 Toyota Prius - 168k - ServicePro Dexos 0W-20
2007 Honda Accord 2.4 - 128K - Idemitsu 5W-20

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#4610096 - 12/21/17 10:48 AM Re: Amsoil Signature Series 5W-30 [Re: Alex_V]
Ian1982 Offline


Registered: 01/04/16
Posts: 29
Loc: Ct,USA
I baby this thing. Hardly sees 3500 rpm lol

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#4610097 - 12/21/17 10:49 AM Re: Amsoil Signature Series 5W-30 [Re: The Critic]
Ian1982 Offline


Registered: 01/04/16
Posts: 29
Loc: Ct,USA
It's a 2013 5.3

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#4610099 - 12/21/17 10:50 AM Re: Amsoil Signature Series 5W-30 [Re: CT8]
Ian1982 Offline


Registered: 01/04/16
Posts: 29
Loc: Ct,USA
No,it doesn't dilute oil with fuel

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#4610101 - 12/21/17 10:51 AM Re: Amsoil Signature Series 5W-30 [Re: Ian1982]
The Critic Online   crying


Registered: 08/30/04
Posts: 19802
Loc: CA
A 2013 with AFM and potential lifter issues will not be a good candidate for extended drains.
_________________________
2011 Toyota Prius - 168k - ServicePro Dexos 0W-20
2007 Honda Accord 2.4 - 128K - Idemitsu 5W-20

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#4610102 - 12/21/17 10:52 AM Re: Amsoil Signature Series 5W-30 [Re: Ian1982]
Bxnanaz Offline


Registered: 11/28/17
Posts: 86
Loc: SC, USA
^^ agreed. Gotta keep those lifters clean.

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#4610109 - 12/21/17 11:03 AM Re: Amsoil Signature Series 5W-30 [Re: The Critic]
Ian1982 Offline


Registered: 01/04/16
Posts: 29
Loc: Ct,USA
So do u recommend changing oil before the OLM says so with a solid product?

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#4610129 - 12/21/17 11:27 AM Re: Amsoil Signature Series 5W-30 [Re: Ian1982]
PimTac Online   content


Registered: 03/04/17
Posts: 4285
Loc: Soviet State of Washington
Originally Posted By: Ian1982
I baby this thing. Hardly sees 3500 rpm lol




You donít have to redline it but you should wind that thing up now and then. Itís actually healthy.
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Valvoline Advanced Synthetic 0w20
Mobil 1 M108A EP filter


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