It is safe to use 1yr old opened oil?

[n6ss6]

Nearly a year ago my brother left a 5qt jug of M1 5w30 open after doing an oil change. Still have 3qt left. It was stored inside the house the whole year and only have a few yellow streaks from the opening. I normally used MS5K because I found it cheaper but having 3 qt of M1 and 1qt from MS5K its perfect for my 2008 sentra 2.0

Can I still safely use the 3qt left?
And its ok to top it with MS5K?

BTW both oil are 5w30

 

[TmanP]

Don't worry about it. I'd use it and i'd have no problem mixing those either. You'll be fine.

 

[zrxkawboy]

No problem!

 

[Donald]

Originally Posted By: n6ss6


Nearly a year ago my brother left a 5qt jug of M1 5w30 open after doing an oil change. Still have 3qt left. It was stored inside the house the whole year and only have a few yellow streaks from the opening. I normally used MS5K because I found it cheaper but having 3 qt of M1 and 1qt from MS5K its perfect for my 2008 sentra 2.0

Can I still safely use the 3qt left?
And its ok to top it with MS5K?

BTW both oil are 5w30


As long as no dirt or dust got in you will be fine.

 

[HTSS_TR]

Originally Posted By: n6ss6
Nearly a year ago my brother left a 5qt jug of M1 5w30 open after doing an oil change. Still have 3qt left. It was stored inside the house the whole year and only have a few yellow streaks from the opening. I normally used MS5K because I found it cheaper but having 3 qt of M1 and 1qt from MS5K its perfect for my 2008 sentra 2.0

Can I still safely use the 3qt left?
And its ok to top it with MS5K?

BTW both oil are 5w30

You mean he didn't have the cap on the jug such that dust may falling into the oil jug ?

If the oil jug is totally open then you need to filter it before use.

 

[901Memphis]

Should be fine even if left un capped since it was inside

 

[Quartz]

According to Mobile, the shelf life of an opened container is 1 year, so you're probably ok. One way to test is to slowly pour some into a glass- if it separates into layers then it's definitely gone bad.

 

[901Memphis]

You might find a spider if you cut open your oil filter

 

[xtell]

Use it as long as nothing fell into it. Maybe strain it when you pour it into your rig

 

[n6ss6]

thanks! I prefer to ask first because I remember reading somewhere that oil could trap moisture after the seal was broken (like new)

and yes it had the cap the whole time, only the outside its a little bit dusty.

 

[toneydoc]

I would use it in a heartbeat

 

[zzyzzx]

Go ahead and use it.

 

[MinamiKotaro]

Sure.

 

[FCD]

Right now i'm using some cheap Krafft 20w50 mineral oil i found in a parking lot that was half full , it turns out the bottle is about 7 years old, i gave it a good shake and when i poured it in it looked fine, so no you're not gonna have problems

 

[cmhj]

People worry too much

 

[Thebimmerfan]

Originally Posted By: FordCapriDriver
Right now i'm using some cheap Krafft 20w50 mineral oil i found in a parking lot that was half full , it turns out the bottle is about 7 years old, i gave it a good shake and when i poured it in it looked fine, so no you're not gonna have problems


I've found Kraft products when I lived in Spain (and only there), it's maybe a spanish brand? I remember them being on the cheep side products, how are they quality-wise?

 

[FCD]

They are more of a Cheap-ish brand, after i have used all the oil in that bottle i'll just stick to Shell Hx3 or Valvoline Vr1

 

[FCD]

One good with about Krafft's oil is that the one i'm using ( Supermultigrade 20w50 ) has nearly 1300ppm of ZDDP which is great for me because my Ford Capri has a flat tappet cam

 

[Thebimmerfan]

Originally Posted By: FordCapriDriver
One good with about Krafft's oil is that the one i'm using ( Supermultigrade 20w50 ) has nearly 1300ppm of ZDDP which is great for me because my Ford Capri has a flat tappet cam


Yeah, in a flat tappet vintage engine this is exactly the kind of oil I would use. I think you've had much luck finding this oil in a parking lot because it perfectly suits the needs of your car - viscozity wise and with a nice amount of ZDDP (something quite hard to find in recent times).

 

[Tony10s]

Originally Posted By: toneydoc
I would use it in a heartbeat


+1



_________________________
2012 Hyundai Elantra GLS, 1.8L
NAPA Synthetic 5W-20
Purolator Synthetic Oil Filter #PSL-14459
Hastings Engine Air Filter #AF1511

2011 Ford Focus SE, 2.0L
Motorcraft Synthetic Blend 5W-20
Motorcraft Oil Filter #FL-910S
Motorcraft Engine Air Filter #FA-1890