Oil into chocolate milk

rshurson1 · 10-31-2018, 03:06 PM

I have a 2015 Carryall 500 and after just 13 hours from the last oil change, I changed it again. That's because the oil resembled chocolate milk! I am using Pennzoil 10W30 conventional. When I bought it this summer it had 66 hours, and when I changed it then, oil was black. Anyone know why the oil looks like chocolate milk?

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DannyAbear · 10-31-2018, 04:20 PM

Water is getting in the oil from somewhere

DaveTM · 10-31-2018, 05:17 PM

Yup. That’s water from some source

dundeebarnbuggy · 10-31-2018, 05:18 PM

Very common up here in cold weather, especially for engines that don't get up to operating temps for a decent amount of time. It will ruin an engine [usually rings] in time.

rshurson1 · 10-31-2018, 05:23 PM

I have two other carts that get used the same, or less, without this issue. It is probably condensation, but shouldn't there be some sort of crankcase ventilation on the Subaru engine?

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Fairtax4me · 10-31-2018, 05:48 PM

Could be water or fuel. Is it just on the dipstick or did you drain the oil and all of it is like that?
What does it smell like? Oil mixed with water just smells like cruddy oil. Oil mixed with gas smells heavily of gas.

rshurson1 · 10-31-2018, 06:57 PM

I drained it and it was all like that. I didn't notice any gas smell, although a malfunctioning automatic choke could cause gas to get in there. I wonder if there is some sort of PCV valve that may not be working properly.

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Fairtax4me · 11-01-2018, 08:55 AM

Has anybody driven it through a bunch of puddles? Power washed the engine bay?

Is the air filter clean? Is it wet or look like it has been wet?

There is some type of breather system on it but I'm not sure of the details, haven't dug that deep into the Subaru motors yet. Getting ready to do the first oil change on the one we bought in the spring.

rshurson1 · 11-01-2018, 09:11 AM

No, it stays pretty dry. It looks like there's some sort of breather hose going from the top of the cylinder to the air intake, but whether that's it, and working fine, is another question.

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dundeebarnbuggy · 11-01-2018, 09:17 AM

Where are you located? What temps are you having lately? How long does your cart run in a typical use?

10-31-2018, 03:06 PM	#1
rshurson1 Not Yet Wild Join Date: Oct 2018 Posts: 12	Oil into chocolate milk I have a 2015 Carryall 500 and after just 13 hours from the last oil change, I changed it again. That's because the oil resembled chocolate milk! I am using Pennzoil 10W30 conventional. When I bought it this summer it had 66 hours, and when I changed it then, oil was black. Anyone know why the oil looks like chocolate milk? Sent from my SM-G960U using Tapatalk
rshurson1 Not Yet Wild Join Date: Oct 2018 Posts: 12

10-31-2018, 04:20 PM	#2
DannyAbear Gone Wild Join Date: Mar 2012 Location: Baton Rouge, La. Posts: 398	Re: Oil into chocolate milk Water is getting in the oil from somewhere

10-31-2018, 05:17 PM	#3
DaveTM Gone Wild Join Date: Oct 2012 Location: Southwestern Pa. Posts: 6,214	Re: Oil into chocolate milk Yup. That’s water from some source

10-31-2018, 05:18 PM	#4
dundeebarnbuggy Gone Wild Join Date: Oct 2016 Location: Dundee quebec Posts: 3,190	Re: Oil into chocolate milk Very common up here in cold weather, especially for engines that don't get up to operating temps for a decent amount of time. It will ruin an engine [usually rings] in time.

10-31-2018, 05:23 PM	#5
rshurson1 Not Yet Wild Join Date: Oct 2018 Posts: 12	Re: Oil into chocolate milk I have two other carts that get used the same, or less, without this issue. It is probably condensation, but shouldn't there be some sort of crankcase ventilation on the Subaru engine? Sent from my SM-G960U using Tapatalk
rshurson1 Not Yet Wild Join Date: Oct 2018 Posts: 12

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10-31-2018, 05:48 PM	#6
Fairtax4me Bonafide Nincompoop Join Date: Dec 2015 Location: Charlottesburg Va Posts: 8,987	Re: Oil into chocolate milk Could be water or fuel. Is it just on the dipstick or did you drain the oil and all of it is like that? What does it smell like? Oil mixed with water just smells like cruddy oil. Oil mixed with gas smells heavily of gas.

10-31-2018, 06:57 PM	#7
rshurson1 Not Yet Wild Join Date: Oct 2018 Posts: 12	Re: Oil into chocolate milk I drained it and it was all like that. I didn't notice any gas smell, although a malfunctioning automatic choke could cause gas to get in there. I wonder if there is some sort of PCV valve that may not be working properly. Sent from my SM-G960U using Tapatalk
rshurson1 Not Yet Wild Join Date: Oct 2018 Posts: 12

11-01-2018, 08:55 AM	#8
Fairtax4me Bonafide Nincompoop Join Date: Dec 2015 Location: Charlottesburg Va Posts: 8,987	Re: Oil into chocolate milk Has anybody driven it through a bunch of puddles? Power washed the engine bay? Is the air filter clean? Is it wet or look like it has been wet? There is some type of breather system on it but I'm not sure of the details, haven't dug that deep into the Subaru motors yet. Getting ready to do the first oil change on the one we bought in the spring.

11-01-2018, 09:11 AM	#9
rshurson1 Not Yet Wild Join Date: Oct 2018 Posts: 12	Re: Oil into chocolate milk No, it stays pretty dry. It looks like there's some sort of breather hose going from the top of the cylinder to the air intake, but whether that's it, and working fine, is another question. Sent from my SM-G960U using Tapatalk
rshurson1 Not Yet Wild Join Date: Oct 2018 Posts: 12

11-01-2018, 09:17 AM	#10
dundeebarnbuggy Gone Wild Join Date: Oct 2016 Location: Dundee quebec Posts: 3,190	Re: Oil into chocolate milk Where are you located? What temps are you having lately? How long does your cart run in a typical use?