UOA after Head Gasket Repair

[Hellcatcfp]

My Hellcat had a small oil leak on block and was the left side head gasket. Right Side UOA was before repair and left UOA after repair. I expected to see some trace elements after repair. I benchmarked all coolant levels after repair and haven't noticed any coolant loss.

Right Side UOA was with PUP 0w-40, and left side said Mopar 0w-40. Looking at additives seem to show different formulation?

Wear looking good...Lead was higher after repair along with Potassium (coolant). Will wait for next UOA and hope Potassium is gone. Figured I would share.

 

[BULL]

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[16GoManGoHC2]

I don’t think there’s any copper any where in the cooling system for the copper to be coming from leached cooper in the coolant and it leaking into the oil. The rod bearings are mostly aluminum, the main bearings contain some copper. The high potassium is weird it’s high in most recent sample but not the last but water % low in both samples which is good, probably the potassium from coolant and The elevated coolant in the latest sample is probably from coolant spillage into the oil drains when the head was popped off for the gasket change. It most likely will diminished greatly with your next oil change, I think you’re OK
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[Hellcatcfp]

I don’t think there’s any copper any where in the cooling system for the copper to be coming from leached cooper in the coolant and it leaking into the oil. The rod bearings are mostly aluminum, the main bearings contain some copper. The high potassium is weird it’s high in most recent sample but not the last but water % low in both samples which is good, probably the potassium from coolant and The elevated coolant in the latest sample is probably from coolant spillage into the oil drains when the head was popped off for the gasket change. It most likely will diminished greatly with your next oil change, I think you’re OK
Edit-verbiage changes

Thanks. All is dry as well...no oil leak. Assuming trace amounts were inevitable due to repair. Not enough to affect wear. Regarding the lead, I'm not sure where that is from then? Car runs great and will keep thread updated with next UOA in six months.

 

[16GoManGoHC2]

Thanks. All is dry as well...no oil leak. Assuming trace amounts were inevitable due to repair. Not enough to affect wear. Regarding the lead, I'm not sure where that is from then? Car runs great and will keep thread updated with next UOA in six months.

Lead and copper are both bearing materials. Blackstone’s normal lead figures for Hellcat motors with 2800 miles on oil is 6-7 ppm so your right in that range. The lead may be increased now because the different brand of oil is not providing as much start up film protection as the oil on the right chart provided. The oil on the right has more zinc and MO in it which both aid in dry start anti wear protection. The oil on the left may not be as good for bearings as the oil on the right, most main bearing wear occurs on start ups.

 

[Hickster]

Having my earl changed next weekster. Does NAPA do an earl, southern term for oilll, for ant partisapant?? Dealershit is still under warranty to perform this for free. Screaming and yelling all the way, thay are.

 

[Hellcatcfp]

Lead and copper are both bearing materials. Blackstone’s normal lead figures for Hellcat motors with 2800 miles on oil is 6-7 ppm so your right in that range. The lead may be increased now because the different brand of oil is not providing as much start up film protection as the oil on the right chart provided. The oil on the right has more zinc and MO in it which both aid in dry start anti wear protection. The oil on the left may not be as good for bearings as the oil on the right, most main bearing wear occurs on start ups.

Great point on changing oil formulations. Mopar 0w-40 isn't PUP'S SRT formulation it seems. Great info...Thank you sir.

 

[Hickster]

I was married to a GAL whom blew my hell gasket every Sat nite. When it stopped, I got a new one,, and divorced. Found this gas getster place called Diamond Dolls in not so Queer Water, Fl. I reside there now. The all youz can eat there is awsume. Never get full thou.

 

[BULL]

I was married to a GAL whom blew my hell gasket every Sat nite. When it stopped, I got a new one,, and divorced. Found this gas getster place called Diamond Dolls in not so Queer Water, Fl. I reside there now. The all youz can eat there is awsume. Never get full thou.

Hick, you went off in the weeds a bit there...

 

[Hellcatcfp]

Ok, I am getting old, here is my Blackstone UOA which is right before head gasket repair...still no lead...using PUP 0W-40. I also have another Napa UOA before this one, but not reflected? Will post up...have to find it.

 

[BULL]

Ok, I am getting old, here is my Blackstone UOA which is right before head gasket repair...still no lead...using PUP 0W-40. I also have another Napa UOA before this one, but not reflected? Will post up...have to find it.

View attachment 54303

FYI

I saw on another forum that there are (claimed) known differences in values from one lab to the next. I saw one set of reports that were sent to Blackstone and Napa? (edit: Wix) that showed different results for the same oil. (Although not large).

I'm on my phone at the moment, but I downloaded the reports on my PC, later I'll post them up.

At the moment I have three samples in to Blackstone from my last oil change. I took the samples three different ways. The goal is to test whether or not sample method results in different values.

(I bought one of their vacuum dipstick oil sample kits)

1st sample - cold eng, vacuum dipstick
2nd sample - hot eng, vacuum dipstick
3rd sample - hot eng, clean catch method from oil pan.

 

[BULL]

See attached (I'm not sure how much I think this is an issue or not, provided as reference only and not mine to begin with)

 

[Speedy!]

Subd

 

[Hellcatcfp]

UPDATE:

Had my second oil change after head gasket repair. Looking like potassium from repair is gone (10 ppm vs. 65 ppm). Looking like all is returning to normal.

 

[covidcommander]

Subd

Speedy! you send any out?

im wondering what metals from wear are normal in a engine that sees a lot of drag racing?

 

[Speedy!]

Yeah I did a video on mine. Check the E85 analysis one

 

[Hellcatcfp]

New UOA after second head gasket repair. This time the tech discovered a small burr on the head and replaced whole assembly.

Other factors in this UOA, new area, WAY MORE spirited driving due to better road opportunities. 93 vs. 91 Octane (doesn't matter most likely).

Report didn't put mileage. Was slightly under 4,000 miles.

Was assuming relative wear would have been higher due to my more aggressive daily driving opportunities. Previous UOAs are above.

 

[Hellcatcfp]

New UOA after second head gasket repair. This time the tech discovered a small burr on the head and replaced whole assembly.

Other factors in this UOA, new area, WAY MORE spirited driving due to better road opportunities. 93 vs. 91 Octane (doesn't matter most likely).

Report didn't put mileage. Was slightly under 4,000 miles.

Was assuming relative wear would have been higher due to my more aggressive daily driving opportunities. Previous UOAs are above.

View attachment 117118

New UOA was also with magnetic drain plug.

 

[Hellcatcfp]

Recent UOA. Driven hard as well.