Water in new oil

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May 19, 2026
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4
I bought a barrel of Volvo Penta 15W-50, VDS 4.5. It turned out that I´ve been fooled, I got the information from another source that the barrel have been sitting without a cap for a while and therefore got some water in it :-(
The oil is slightly "hazy". I´ve been running it in my Pentas for one hour now and it looks normal at the moment.

What do you think ?
"Ditch it all" or "It will boil off" ?
 
OK, I will try to take a picture.
I know the "original owner" who used to run the boatbuilding company which went into bankruptcy, he confirmed that it´s the correct oil. Ther was another guy buing it and some other stuff from the law firm in charge of the bankruptcy, that is the guy I bought it from.
 
I bought a barrel of Volvo Penta 15W-50, VDS 4.5. It turned out that I´ve been fooled, I got the information from another source that the barrel have been sitting without a cap for a while and therefore got some water in it :-(
The oil is slightly "hazy". I´ve been running it in my Pentas for one hour now and it looks normal at the moment.

What do you think ?
"Ditch it all" or "It will boil off" ?
This may sound a little rough given that you have acquired a whole barrel, but with known contamination, you will never really know what you have. I would suggest recycling the barrel, draining the oil, and starting again. Also gotta wonder what your supply chain looks like where you are getting info about a barrel of oil from a third party post purchase. With respect, is this the reason you can't go back to the source and asked why this happened? Was this purchased at a considerable discount...?
 
This may sound a little rough given that you have acquired a whole barrel, but with known contamination, you will never really know what you have. I would suggest recycling the barrel, draining the oil, and starting again. Also gotta wonder what your supply chain looks like where you are getting info about a barrel of oil from a third party post purchase. With respect, is this the reason you can't go back to the source and asked why this happened? Was this purchased at a considerable discount...?

As the saying goes, caveat emptor.
 
What Chris142 said is what I thought.

Post 8 has me thinking.

Also, was 'stuff' dumped into this drum during a likely period of uncertainty at the company as it was going under? <<THINK angry or flippant employees with a "who cares" attitude.

How full is the drum? Is moving it around a bear of a job?
Is this a 48- or 55-gallon drum?

Time for a VOA.
 
OP -
Don't ask us. We can't see it because we're not standing next to the drum. Even if we were, we'd still be guessing just like you are.

Here's a suggestion which actually has merit:
Get some VOAs done. Take two samples; one from the bottom of the drum, and one in the middle. The bottom sample is likely to tell you how much water got into the drum. The middle sample should give a decent indication of the true lube characteristics (not tainted at the bottom). If the two samples are reasonably similar, then it's probably safe to use, presuming it meets the specs of the lube it's purported to be. That would give you some real data to use for your decision.

Yes; it's going to cost some money to do this. You'll have the analysis to pay for and also get a decent sample pump and hose to draw the fluid.
But at least you'll actually KNOW, rather than asking for secondhand opinions which cannot even see the lube in person.
 
If the cap was missing and the drum was outside, there is no telling what else is floating in that oil and water. Also, while it may a ridiculous thought, you may not know how much oil and water you have there. There could be a lot of water as it would have displaced the oil. Too much variability.
 
Ok, time for some explanation.
An old friend of mine built boats for 15 years, unfortunately they went into bankruptcy. It´s common practice here in Sweden to let an a law firm sell all the remaining inventories "as is" on an auction, which they did.
Then another guy bought two barrels of oil and I bought one of them from him - cheap. This second guy was obviously not honest..

After noticing som haze in the oil I contacted my old friend who told me that i had been sitting outside, after the bankruptsy, with a cheap barrel pump attached, most likely it have leaked.

The easy answer is off course to ditch it and buy new but I was thinking that there is quite often water from condensation in the motor oil on our Piper Cherokee for example. Maybe some is acceptable ??

I´ll attach a lousy pic of the barrel today and try to make a pic of the oil itself like tomorrow.

Unfortunately oil analysis is not a thing here in Europe.

IMG_4959.webp
 
Ok, time for some explanation.
An old friend of mine built boats for 15 years, unfortunately they went into bankruptcy. It´s common practice here in Sweden to let an a law firm sell all the remaining inventories "as is" on an auction, which they did.
Then another guy bought two barrels of oil and I bought one of them from him - cheap. This second guy was obviously not honest..

After noticing som haze in the oil I contacted my old friend who told me that i had been sitting outside, after the bankruptsy, with a cheap barrel pump attached, most likely it have leaked.

The easy answer is off course to ditch it and buy new but I was thinking that there is quite often water from condensation in the motor oil on our Piper Cherokee for example. Maybe some is acceptable ??

I´ll attach a lousy pic of the barrel today and try to make a pic of the oil itself like tomorrow.

Unfortunately oil analysis is not a thing here in Europe.
It took me less than 10 seconds to find UOA services in Sweden. It seems you’re too lazy to search for yourself …. You get no sympathy from me.
Enjoy your watered down oil 🥴
 
I'm funny about unknowns and anything with the top open and simply funny about oil in general.
Not only water but anything could have been poured in that drum...
Nope, not me I would not risk it but I'm NOT a risk taker when it comes to my engines...
 
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