Is SJ dated oil still good?

[BrokenAudiTT]

I have several quarts of this oil with a 98 date stamp. It's still good right ?

 

[spasm3]

I'd use it only in a mower.

 

[Lawnman23]

SJ is spec’ed for 2001 and older. If still sealed, run it if applicable for something or for OPE as mentioned.

 

[BrokenAudiTT]

I think I'll just take it to be recycled

 

[daves87rs]

Might be best….

 

[53' Stude]

I have several quarts of this oil with a 98 date stamp. It's still good right ?

View attachment 277657

View attachment 277658

Use it in OPE

 

[JimPghPA]

Actually, LSJ pointed out that one of the additives that settles out of old oil and no longer works is for not foaming up.

A sump full of bubbles is not a good oil, even for an outdoor air cooled engine.

I would use it for chain lube of a chainsaw, and nothing else.

 

[JohnnyJohnson]

I've been using that kind of oil in my mower for nearly 20 years now. So it hasn't been bad enough that ole air cooled Briggs has given up the ghost

 

[Escape08]

If you have a late 1980s - 2000s vehicle. You can pair it with current 10W40 with 25:75 mix ratio or 1 qt : 3 qt (current) if the engine requires 4 qts of oil

 

[Fordiesel69]

In any case I do have a small vintage oil collection. I do not use old 60's, 70's ~90's 2 stroke oils. They are just for viewing pleasure.

The chevron supreme 10w-40 pictured would be fine in an old lawnmower engine, or as bar and chain oil. Not good to use in a car engine.

 

[addyguy]

I’d use it in a car engine no problem.
We’ve seen UOA’s using super old oil in newer engines, and it does just fine.

 

[Lockasiam]

chain lube of a chainsaw, and nothing else.

can you add tackifier?

 

[Fordiesel69]

yes, 4 oz of STP / motor honey will go a long way.