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Engine oil in coolant.


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Ruskiko
New User

Jun 7, 2012, 3:37 PM

Post #1 of 7 (2035 views)
Engine oil in coolant. Sign In

My son poured engine oil into the radiator (thinking it was coolant)of his 2002 Chevy s10 blazer and then drove it. I have been using a kit that attaches to the heater hose to flush the system. Some of the oil is coming out (looks like mayo) but it is still sticking to the inside of the radiator and overflow tank. What can I do to break up the oil to get it out before replacing the thermostat and hoses?


Hammer Time
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Jun 7, 2012, 4:08 PM

Post #2 of 7 (2009 views)
Re: Engine oil in coolant. Sign In

Run some liquid dishwashing soap through it until it breaks down all the grease and then flush it real good.



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Ruskiko
New User

Jun 7, 2012, 5:43 PM

Post #3 of 7 (1984 views)
Re: Engine oil in coolant. Sign In

Won't that foam up?


Hammer Time
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Jun 7, 2012, 5:46 PM

Post #4 of 7 (1981 views)
Re: Engine oil in coolant. Sign In

Not if you only use a little (one squirt). It needs clean water to foam anyway. The oil will kill the bubbles.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Discretesignals
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Jun 7, 2012, 5:58 PM

Post #5 of 7 (1975 views)
Re: Engine oil in coolant. Sign In

I heard dish washing powder, the stuff for dish washing machines (Cascade), works good also. Mix it with water before adding it to your cooling system. I'd do it with the thermostat removed also.

Nick should know this. Them diesel guys are always getting blown out coolers.





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(This post was edited by Discretesignals on Jun 7, 2012, 6:08 PM)


Tom Greenleaf
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Jun 8, 2012, 6:01 AM

Post #6 of 7 (1937 views)
Re: Engine oil in coolant. Sign In

Oil in coolant needs be out fast. It's hard on rubber parts, hoses, and anything rubber. Automatic dish washing soaps and laundry soaps don't foam too much by intended so you don't do the "I Love Lucy" trick with foam all over the place.

You still rinse it clear out anyway and refill with proper new mix of antifreeze and water,

T



nickwarner
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Jun 9, 2012, 3:54 PM

Post #7 of 7 (1909 views)
Re: Engine oil in coolant. Sign In

Used Cascade just yesterday actually, and must have t-stat out to do it right. Also had good luck with simple green.






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