Mobil 1 Full Synthetic shelf life - Snowblower Forum : Snow Blower Forums
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post #1 of 25 Old 01-02-2017, 02:10 PM Thread Starter
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Mobil 1 Full Synthetic shelf life

Just changed the oil in my new Ariens Deluxe 28 SHO after about the first 5 hours of use.

Had an unopened litre bottle of Mobil 1 full synthetic 5W30 in my unheated garage so I used it.

Realized after using it that it was probably around 10 years old. The oil looked ok being poured in.

So being cautious at the wrong time, after the fact as it were, now researching on the internet and finding out that oil actually has a shelf life.

I know it's just a liter of oil, but it's supposed to get much colder tomorrow and would prefer to not have to change the oil again if the stuff I used is ok.

Any opinions on this?

Thanks
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post #2 of 25 Old 01-02-2017, 02:23 PM
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Should be good forever give or take a month. MH

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post #3 of 25 Old 01-02-2017, 02:30 PM
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As long as it was not open I would not go over thinking it.

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post #4 of 25 Old 01-02-2017, 02:54 PM
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Garage
Just shake it a little to stir the chemicals up.
After you pour it in, look into the bottle to see if nothing has settled. If so, shake it more.

I have some old Quaker State left over from servicing my truck 10 years ago. I have started doing the service again as the dealer does a terrible job.
Anyway I poured 1 bottle into my truck and noticed stuff in the bottle. I shook the next bottle and it went all down like fresh oil. The engine is happy so no issues using old oil.

Bob
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post #5 of 25 Old 01-02-2017, 03:05 PM Thread Starter
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Thanks guys! Much appreciated. I left about 50 ml in the bottle and don't see anything different in there.

I suppose manufacturers have to talk about shelf life for CYA reasons.
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post #6 of 25 Old 01-02-2017, 03:19 PM
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I've had odd bottles of motor oil in my shed for at least 20 years and whenever I open one it looks like it was just put in there yesterday. I wouldn't worry.
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post #7 of 25 Old 01-02-2017, 03:47 PM
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Guys:

Quote:
Originally Posted by Mobil 1 USA website


Answer:


ExxonMobil recommends a five-year maximum shelf life for engine oils, including Mobil 1 synthetic motor oil.




.....
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post #8 of 25 Old 01-02-2017, 04:04 PM Thread Starter
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Quote:
Originally Posted by uberT View Post
Guys:
Quote:
Originally Posted by Mobil 1 USA website


Answer:


ExxonMobil recommends a five-year maximum shelf life for engine oils, including Mobil 1 synthetic motor oil.
Right, I found this today as well, and was wondering if there was a more pragmatic view on this. I figured that manufacturers have to place some kind of time limit on shelf life just to keep things from being completely open ended.
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post #9 of 25 Old 01-02-2017, 04:33 PM
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Simon, there's always one way to find out if the product mfr has your best interests in mind
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post #10 of 25 Old 01-02-2017, 05:21 PM
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I also read that on Mobil's website (the 5 year shelf life). The FAQ answer is 10.5 years old, not sure why Mobil 1 has not updated their response. I have read that in recent years oil additive packages have been improved substantially, perhaps their shelf-life has not. Whether Exon Mobil wants you to keep buying fresh product or whether the additive package dissipates significantly after 5 years is a good question.

Ariens Platinum 24 SHO w/369cc carbureted LCT motor


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