Recent Topics
Discount Tire Direct flash sale
by c502cid - 09/23/19 01:49 AM
Discount Tire Direct Instant $100 Savings One Day ONLY
by 71Chevyguy - 09/23/19 01:48 AM
Hankook Fall Rebate
by FordBroncoVWJeta - 09/22/19 11:23 PM
Axle and exhaust fixes this weekend
by Colt45ws - 09/22/19 11:07 PM
Maxlife v dex/merc
by HyundaiAbuser - 09/22/19 09:24 PM
15,119 Mile Supertech UOA
by Stumpy - 09/22/19 08:54 PM
Rust-Oleum Factor 4
by CatCam2 - 09/22/19 08:20 PM
Local Walmart Magnatec Closeout- Maybe Others?
by SSerian - 09/22/19 07:32 PM
Anti theft measures for new truck
by Oldtom - 09/22/19 07:28 PM
What would you do?
by Rexinaus - 09/22/19 06:26 PM
What size wire for 5 HP motor?
by dlundblad - 09/22/19 06:12 PM
Studless V/S studded winter tires
by cecil56 - 09/22/19 06:10 PM
200K more to Go!
by Gebo - 09/22/19 06:07 PM
Toyota license plate bolts/screws
by edwardh1 - 09/22/19 05:38 PM
How Do You Clean Your Grill ?
by Warstud - 09/22/19 04:05 PM
Curious question?
by Bill_W - 09/22/19 03:06 PM
Haldex, Automatic on demand clutch fluid?
by sloinker - 09/22/19 03:02 PM
Newest Members
dburch, Hueiyeh, Texguy, jm1, Dunkaroo
69364 Registered Users
Who's Online Now
28 registered members (BigCav, c502cid, 71Chevyguy, Ag76, ChristianReske, Brad_C, 3 invisible), 725 guests, and 22 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics294,930
Posts5,069,481
Members69,364
Most Online3,532
Jul 30th, 2019
Donate to BITOG
Print Thread
Hop To
Page 1 of 2 1 2
Motor oil shelf life #5106892 05/16/19 01:07 PM
Joined: Aug 2004
Posts: 5,880
blupupher Offline OP
OP Offline
Joined: Aug 2004
Posts: 5,880
This question keeps getting brought up. so I figured I would post some links with info on it here.

Several manufacturers give a shelf life for their motor oils.
Some have no information available online that I have been able to find.

Mobil gives a 5 year shelf life in their FAQ.
[Linked Image]

Pennzoil says a 4 year shelf life in their FAQ.
[Linked Image]

Amsoil gives a 5 year shelf life in this TSB.
[Linked Image]

Chevron (marine products, can't find anything for PCMO or HDEO) is 5 years.
[Linked Image]

Valvoline says no documented expiration date. Go by API rating.
[Linked Image]


For Shell/Rotella, Redline, Castrol, Royal Purple and Warren (Supertech/Amazon Basics) I can't find any information online.
I did read somewhere that someone had called Castrol and was told 3 years, but nothing to back that up.
I have heard some have called Redline and been told 3 years, 10 years, and no expiratiion. Again, no proof, just remember reading it here at some point in time.

I did not see anything that differentiated conventional oil and synthetic oil shelf life.

The ironic thing is that finding the date of manufacture of the oil can be daunting at times depending on the manufacturer.
Pennzoil is the easiest, the date is a simple date (day, month, year).
Castrol is fairly simple also, letter is plant code, then five numbers. First two are the year, last 3 are the day of the year.
Mobil uses a code, the first three numbers are the plant, the next two number are a 2 digit year, then the month letter (A=Jan, B=Feb, etc, with letter "I" being skipped) then 2 digit date. Mobil also has an older date code format (2009 and earlier) that is similar.
Valvoline uses a similar code to Mobil, but is month letter, day and year.
Shell/Rotella has a long code, first comes the plant (usually letters), then a batch code, then the date (will be numbers, month,day,year, no spaces) then time made.
Amsoil only has a batch code, not a date code, so you have to contact them to decipher the date from the batch code.

This is not a complete list, and not everything is covered here, but I think this gives some basic information.
Also this refers only to oil in original, unopened, sealed containers stored in "optimum" conditions (i.e. indoors, relatively stable environment, not just sitting outside or the trunk of a vehicle. Detached sheds could be OK depending on ambient temps and humidity).

The argument that the oil is millions of years old and won't expire is not valid. Would you pour crude oil into your engine? Did not think so.
Engine oil is a refined product, and synthetic oils are highly refined, and contain other additives.
Some of these additives may fall out of suspension, hence the recommendation to shake the bottles before adding.

I know Blackstone Labs did a test back in 2012 on new oils from the 70's and 80's and it was fine to use in vehicles from that era. The article no longer exists though that I can find.

I don't want this to become my personal opinion post, and won't tell you to or not to use an older oil. Only you can decide that.
But I will post a few of my opinions here, and these are just that, my opinion:
  • If the API/ILSAC/ACEA spec and viscosity of the oil meets or exceeds the engine requirements, no issues will arise using that oil regardless of age (again, sealed container, stored appropriately, etc).
  • Most of these are not truly the expiration of the oil, but more an expiration on the API rating. (guess what the average API life is since 1967... (hint: 5.7 years)
  • I also think it is a legal way out of any issues with using an older oil that may not have been stored under ideal conditions.
  • Valvoline must make some special oil, since they are the only one that says oil does not go bad.

Re: Motor oil shelf life [Re: blupupher] #5106935 05/16/19 01:51 PM
Joined: Dec 2017
Posts: 2,674
J
JLTD Offline
Offline
J
Joined: Dec 2017
Posts: 2,674
Man, this does go 'round and 'round doesn't it? beer

So the manufacturers for the most part say 4-5 years and their lubricants are......what exactly? They don't say, as "shelf life" is a very open term.

Yet there are folks on here (and at Blackstone) that have run oils 15 or 20 years old with good results.

I think it's the lawyers for the manufacturers that are involved here...if they say their lubricants will last "indefinitely" on the shelf it opens up some liability. I'd think that they're going conservatively, and if there's any degradation over time then 5 years is maybe 1/2 of the time that the degradation will start to occur. (speculation)

I haven't come across anything that says a motor oil is degraded after only 5 years.

This should be interesting. popcorn


I use the overseas manual to choose my oil viscosity.

Using AMSOIL

Hers: 2008 Jeep Liberty 149k, SS5w30/Amsoil

His: 2015 4Runner 55k, SS 5w20/Amsoil

Re: Motor oil shelf life [Re: blupupher] #5106961 05/16/19 02:35 PM
Joined: Aug 2012
Posts: 2,316
MrQuackers Offline
Offline
Joined: Aug 2012
Posts: 2,316
If the oil has the specs required for the vehicle you're golden.



Master the 1000 yard stare

coffeeMobil 1 USA
Re: Motor oil shelf life [Re: blupupher] #5107147 05/16/19 07:22 PM
Joined: Jul 2013
Posts: 2,747
N
NormanBuntz Offline
Offline
N
Joined: Jul 2013
Posts: 2,747
Very clever post by MrQuackers.


Firesign Theater: "Heavy on the 30 weight, Mom."
2013 Honda Accord LX, 61K, 2nd owner
2007 Honda Ridgeline RTS, 92K, 1st owner
2007 Infiniti M35, 114K, 1st owner
Re: Motor oil shelf life [Re: NormanBuntz] #5107319 05/17/19 12:31 AM
Joined: Dec 2017
Posts: 2,674
J
JLTD Offline
Offline
J
Joined: Dec 2017
Posts: 2,674
Originally Posted by NormanBuntz
Very clever post by MrQuackers.


It was...nice retro video...

I'm surprised that there hasn't been more posts; this could be a very interesting discussion.


I use the overseas manual to choose my oil viscosity.

Using AMSOIL

Hers: 2008 Jeep Liberty 149k, SS5w30/Amsoil

His: 2015 4Runner 55k, SS 5w20/Amsoil

Re: Motor oil shelf life [Re: blupupher] #5199656 08/29/19 09:14 AM
Joined: Aug 2019
Posts: 3
E
Evan93 Offline
Offline
E
Joined: Aug 2019
Posts: 3
I recently purchased a Jug of Mobil Super 1000 5W-30. I have never used Mobil Motor Oil before. I have heard very good things though. I purchased it on sale at my local Canadian Tire, but it wasn't actually on the shelf. I had to ask an employee to see if it was still in stock. They found me one in the back room. My printed code on the jug is OEV15G20A B.09:05 00581- #8309 5912
So I guess the Manufactuing date would be July 20th of 2015? So do you guy's think I can get away with using a 4 year old jug? I believe the Super 1000 is conventional oil not Synthetic. I read that Mobil states a 5 year expiration but that it for their Synthetics.

Re: Motor oil shelf life [Re: blupupher] #5199974 08/29/19 03:29 PM
Joined: Jan 2011
Posts: 693
D
DGXR Offline
Offline
D
Joined: Jan 2011
Posts: 693
The annual temperature range in my garage is 25F-120F. I wonder if that swing affects the shelf life of my gear oils, the only ones that I keep in stock over 5 years... I only keep around 2-3 years' worth of motor oil on hand.


1995 Corvette coupe LT1 6-speed
2006 Tacoma 2.7 Base SR5 AC
1999 Yamaha YZ400FL
2003 Honda XR400R
Re: Motor oil shelf life [Re: blupupher] #5200020 08/29/19 04:34 PM
Joined: Apr 2004
Posts: 986
N
nascarnation Offline
Offline
N
Joined: Apr 2004
Posts: 986
I've used 10 and 12 year old quarts of Castrol magic green without issue.
And the 35 year old gear oil I drained out of the differential on my Camaro didn't look bad either and the parts were looking good.

Re: Motor oil shelf life [Re: Evan93] #5200024 08/29/19 04:35 PM
Joined: Apr 2004
Posts: 986
N
nascarnation Offline
Offline
N
Joined: Apr 2004
Posts: 986
Originally Posted by Evan93
So do you guy's think I can get away with using a 4 year old jug? I believe the Super 1000 is conventional oil not Synthetic. I read that Mobil states a 5 year expiration but that it for their Synthetics.


Depending on your religious beliefs, that crude may be a million or two years old and the portion of its life in a Mobil bottle is an incalculable fraction.

Re: Motor oil shelf life [Re: blupupher] #5200039 08/29/19 04:56 PM
Joined: Jul 2005
Posts: 33,009
D
demarpaint Offline
Offline
D
Joined: Jul 2005
Posts: 33,009
Worth a read. We tend to over think things. Blackstone Article On Older Oils


God Bless Our Troops

Re: Motor oil shelf life [Re: demarpaint] #5200045 08/29/19 05:11 PM
Joined: Aug 2004
Posts: 5,880
blupupher Offline OP
OP Offline
Joined: Aug 2004
Posts: 5,880
Originally Posted by demarpaint
Worth a read. We tend to over think things. Blackstone Article On Older Oils

That's the one I was looking for. Thanks.


2018 Santa Fe: PP 10W-30/OEM/5k
2018 Soul: Mobil Super 5W-20/OEM/5k
2012 xB: M1 EP 0W-20/CQ Blue/5k
2002 F150: Magnatec 5W-20/Bosch D+/1yr
1994 VT1100: Peak 15W-40/Bosch D+/1yr
Re: Motor oil shelf life [Re: blupupher] #5200062 08/29/19 05:33 PM
Joined: Jul 2005
Posts: 33,009
D
demarpaint Offline
Offline
D
Joined: Jul 2005
Posts: 33,009
Originally Posted by blupupher
Originally Posted by demarpaint
Worth a read. We tend to over think things. Blackstone Article On Older Oils

That's the one I was looking for. Thanks.

thumbsup


God Bless Our Troops

Re: Motor oil shelf life [Re: blupupher] #5200577 08/30/19 11:10 AM
Joined: Jan 2019
Posts: 57
M
Macsignals Offline
Offline
M
Joined: Jan 2019
Posts: 57
Apologies if this isn't a good thread to ask about this. I found this SM-spec bottle of Supertech in an old locker at work. Is this what happens when additives etcetera separate out or is this something else?

[Linked Image]
[Linked Image]
[Linked Image]


-Ian A.
Mine:
2016 GMC Sierra 1500, L83 5.3L V8. Shell RGT 0w20, Bosch 3502 oil filter. Daily driver.
1992 Dodge Dakota, 3.9L V6. Delvac 10W30, Napa Silver filter. Out of service for restore.
Re: Motor oil shelf life [Re: blupupher] #5200724 08/30/19 02:50 PM
Joined: Dec 2011
Posts: 6,598
rooflessVW Offline
Offline
Joined: Dec 2011
Posts: 6,598
Looks like water.


"Zed's dead baby, Zed's dead."
Re: Motor oil shelf life [Re: rooflessVW] #5200729 08/30/19 02:58 PM
Joined: Mar 2015
Posts: 6,742
B
bbhero Offline
Offline
B
Joined: Mar 2015
Posts: 6,742
Makes me wonder if that is water too ^^^^^^^

Would not go in any vehicle I care about.


Nissan Altima 3.5 Coupe
Cam2 Dexos1 Gen 2 5w30 Wix 57356 Oil filter
"Treat your family like your friends and treat your friends like your family."
Page 1 of 2 1 2
Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™