Oil Analysis
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Oil Analysis
Blackstone analysis came back high in Potassium and Sodium with antifreeze % at .58. Is it possible something got in when the turbo was installed (EGR, CCV, etc...removed/disabled)? I am going to run another analysis but wonder if I am getting coolant in do I replace head gaskets now or monitor at each change, and if I monitor at what level do I park it and get the heads done? I have 186,000 on the truck and the oil sample had 7500 miles on it. Rotella T6 with amzoil bypass system and Zmax, This was the statement;
ERIC: These results may not be what you were hoping for. There's a lot of potassium and sodium in this
sample, and those are both markers for coolant contamination. The additive you mentioned is
solvent-based and it probably cooked off, so it shouldn't be influencing these results. Copper shows wear at
brass/bronze parts compared to universal averages, which show typical wear for this type of engine after
about 6,500 miles of oil use. The trace of fuel is fine and the TBN is strong at 8.6, but use just 5,000 miles
next and watch for coolant loss. Check back to monitor.
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ERIC: These results may not be what you were hoping for. There's a lot of potassium and sodium in this
sample, and those are both markers for coolant contamination. The additive you mentioned is
solvent-based and it probably cooked off, so it shouldn't be influencing these results. Copper shows wear at
brass/bronze parts compared to universal averages, which show typical wear for this type of engine after
about 6,500 miles of oil use. The trace of fuel is fine and the TBN is strong at 8.6, but use just 5,000 miles
next and watch for coolant loss. Check back to monitor.
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if you stated the truck model and engine type I missed it.
so you have 1/2 of 1 percent of coolant in your oil.....how did it get there????
on a gas truck...head gasket possibly,
on a diesel truck....head gastket....cavitation of water pump will cause a leak into engine crank case
is 1/2 of 1 percent a scary number after 7500 miles???? why are you driving 7500 miles or even 5000 miles on the same oil....oil is cheap and you have a lot of miles....I would use the severe duty oil change schedule.
so you have 1/2 of 1 percent of coolant in your oil.....how did it get there????
on a gas truck...head gasket possibly,
on a diesel truck....head gastket....cavitation of water pump will cause a leak into engine crank case
is 1/2 of 1 percent a scary number after 7500 miles???? why are you driving 7500 miles or even 5000 miles on the same oil....oil is cheap and you have a lot of miles....I would use the severe duty oil change schedule.
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if you stated the truck model and engine type I missed it.
so you have 1/2 of 1 percent of coolant in your oil.....how did it get there????
on a gas truck...head gasket possibly,
on a diesel truck....head gastket....cavitation of water pump will cause a leak into engine crank case
is 1/2 of 1 percent a scary number after 7500 miles???? why are you driving 7500 miles or even 5000 miles on the same oil....oil is cheap and you have a lot of miles....I would use the severe duty oil change schedule.
so you have 1/2 of 1 percent of coolant in your oil.....how did it get there????
on a gas truck...head gasket possibly,
on a diesel truck....head gastket....cavitation of water pump will cause a leak into engine crank case
is 1/2 of 1 percent a scary number after 7500 miles???? why are you driving 7500 miles or even 5000 miles on the same oil....oil is cheap and you have a lot of miles....I would use the severe duty oil change schedule.
Sorry, figured that when I mentioned changing the turbo, removing the EGR and CCV, and using Rotella T it would have signified diesel.
It is a 2012 F350 4x4 CCLB 6.7 PSD with 186,000 miles. Based on the analysis the oil was good for far more than 7,500 miles (this is when the message comes on) I do have 186000 miles at this interval with no problems.
I have no idea why there is coolant, I was asking if I should immediately take it in and get head gaskets or continue as normal and monitor the potassium and magnesium levels. The turbo was changed to Non VGT during the cycle of the oil sample at which time the EGR was removed and the CCV was rerouted out of the system, not sure if coolant could enter during that process. Otherwise it is a head gasket.
Oil is cheap relative to the original cost of the truck but not cheap on the budget when putting 3 gallons of synthetic and $75 worth of fuel filters on at every change.
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Joined: Dec 2006
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From: Melbourne, Ky
I can see a little coolant getting in there while doing the EGR delete. It may be head gaskets, but I wouldn't consider that the most likely source since you did remove the turbo and the EGR system. I would do as stated. Keep an eye on the coolant, and change at 5000 miles next time. Of course, you could get a sample after 1000 miles and send it in too. Also, I would change the bypass filters if you haven't done so. They will have contaminants in them that would show up in your next sample.
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