How old is too old for stored oil??

[rraiderr]

I asked amsoil as I found some old oil in my garage.

Amsoil said 5 years is shelf life.

 

[cptbarkey]

SL/SM is probably the golden age of good PCEO oil. Use your stash with confidence. Ignore folks who regurgitate a particular YT huckster.

 

[vavavroom]

If you are over 90 you are too old for hoarding and may want to think about using up your oil stash. Did I misunderstand the question?

 

[Jetronic]

I have some older oil bottles, but in 5 litre containers. Not looking forward to pouring those out. But they contain little to no moly so there's that

 

[CKN]

It's fine. Shake it up and use it.

You have a link stating they are robust as new?

 

[wingxzero]

The older the better...oil ages like a fine wine. Jk

 

[RooflessVW]

After having been involved with the US Army's Shelf Life Program...

I know it takes a long time for oil/grease to "go bad."

 

[jhellwig]

You have a link stating they are robust as new?

Do you have one stating it isn’t?

 

[double vanos]

Send it all to project farm, probably see them in a video in the future.

 

[CKN]

Do you have one stating it isn’t?

You gave an opinion- it's not your motor, where is the proof?

 

[cptbarkey]

You gave an opinion- it's not your motor, where is the proof?

Blackstone has published a few old shelf UOAs and a recent podcast episode showcased another. Good enough for you? Google it.

 

[IndyIan]

I found some 10+ year old 5l jug of 20W50 in my Dad's shed, opened. He was adding it to the chainsaw bar oil jug. He is giving up the chainsaw so I'm helping clean that stuff out. Anyways, it looked and smelled, and poured like new to me, so some of it went to top up the old B&S 3.5 on the rotortiller. It did not chose the next hour of use to end its very long life, so I guess the oil was good enough!

 

[gfh77665]

I'm seeing a lot of opinions here .

Thats why I posted this:

http://www.pqiamerica.com/devilsindisguise.htm

Oils DO go obsolete, regardless how well they are stored.

 

[2strokeNorthstar]

When it turns back into a dinosaur? I would use pretty much anything that was still in spec. I wouldn't use SG in a new car for example.

 

[ATex7239]

Blackstone has published a few old shelf UOAs and a recent podcast episode showcased another. Good enough for you? Google it.

Did they happen to address BS’s fuel dilution inaccuracies and the KV100 viscosity ranges they provide, which are wildly different than J300 standards, on the podcast as well?

 

[jhellwig]

You gave an opinion- it's not your motor, where is the proof?

Gee, I don't know. If only there was a website where I could read about this kind of stuff.............

 

[53' Stude]

I have a lot of older oils that Im just now getting around to using, most are SM but some are SL. They are stored in a insulated & sometimes heated garage so never freezing, I shake them every year or so. Just curious how old is considered too old to use, would be for a mid 2000s toyota or older 1970's GM V8 engines.

I can list all the different brands & weights but most are full synthetic like Mobil1 SL, or valvoline SM, also have a few jugs of the old rotellaT SL & Delo 400 SM conventional diesel oils. Some are at or close to 20 years old others are 10-15. Are these still safe to use?

I ran PYB with Z-7 technology in my 97’ Bonneville without an issue for like 3 years. It was in cardboard cans.

 

[Nessism1]

I just gave my kid a jug of Rotella T6 5W-40, the CI-4 version, for use in his Yamaha MT-07.

 

[cptbarkey]

Did they happen to address BS’s fuel dilution inaccuracies and the KV100 viscosity ranges they provide, which are wildly different than J300 standards, on the podcast as well?

They have mentioned it a few times, as well as their slow turnaround times, neither of which is acceptable to me and they no longer get my business.

 

[gasman556]

They have mentioned it a few times, as well as their slow turnaround times, neither of which is acceptable to me and they no longer get my business.

Who would you recommend? Tia.