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The oil in my truck is clumpy after using archoil for the first time...my truck started to idle erratically but it would clear up under throttle I thought my oil pump was failing but it seems like the flow of oil had to be forced... I drained the oil and found it to be thick I'll post a video later showing the consistency of the oil
did it look like a brownish milkshake texture?was your oil filter black and all gummed up? Please post pictures
Unlike the op of this thread, I assume everything in your oil system is OEM (filter and housing cap, and housing internals)? From local or online dealerships?
Also, it may be time to start posting where people have bought their Archoil 9100. I do not buy it on Amazon. I have only bought it from one authorized representatives/sales person (who retired and is no longer an Archoil rep - he was on "TheDieselGarage.com").
As best we can tell, the sample I opened up might be as old as 5 years. Certainly no older than that. Just a guess - no way to know for sure.
Since I have some quite old engine oil, I will be opening those bottles to see what they look like (increased curiosity now). I also just purchased a new bottle of Archoil 9100 directly from their web site, so I can add what it looks like in a few weeks or so. I hope to get one last bit of help to keep my "250k-mile original injectors" going a bit further.
I sure would like to see a collection of all sources reporting this - especially if some Archoil folks drop in.
Also - seems like hard crystalline solids that do not dissolve would plug oil coolers, so keeping track of that seems warranted.
Unlike the op of this thread, I assume everything in your oil system is OEM (filter and housing cap, and housing internals)? From local or online dealerships?
Also, it may be time to start posting where people have bought their Archoil 9100. I do not buy it on Amazon. I have only bought it from one authorized representatives/sales person (who retired and is no longer an Archoil rep - he was on "TheDieselGarage.com").
As best we can tell, the sample I opened up might be as old as 5 years. Certainly no older than that. Just a guess - no way to know for sure.
Since I have some quite old engine oil, I will be opening those bottles to see what they look like (increased curiosity now). I also just purchased a new bottle of Archoil 9100 directly from their web site, so I can add what it looks like in a few weeks or so. I hope to get one last bit of help to keep my "250k-mile original injectors" going a bit further.
I sure would like to see a collection of all sources reporting this - especially if some Archoil folks drop in.
Also - seems like hard crystalline solids that do not dissolve would plug oil coolers, so keeping track of that seems warranted.
The oil in my truck is clumpy after using archoil for the first time...my truck started to idle erratically but it would clear up under throttle I thought my oil pump was failing but it seems like the flow of oil had to be forced... I drained the oil and found it to be thick I'll post a video later showing the consistency of the oil
did it look like a brownish milkshake texture?was your oil filter black and all gummed up? Please post pictures
That oil looks like it has coolant in it to me. Looking almost like pudding - which has been documented to happen with some coolant and oil mixtures - especially when agitated from flow through impellors. Happens with coolants that have certain surfactants in them. Especially this one:
Hopefully we will see a UOA from you since the OP never did post one.
That oil looks like it has coolant in it to me. Looking almost like pudding - which has been documented to happen with some coolant and oil mixtures - especially when agitated from flow through impellors.
Maybe we will get a UOA from you since the OP never did post one.
It certainly isn't hard crystalline solids.
samples are going to Blackstone and another one here in Vegas. Didnt have any coolant loss at all, so time will tell
The pictures you posted do not look like the pic from jsm180, or mine for that mater. Not any "lightish" brown coloring that I could see anyway. The last one with the tan sludge looks the most like coolant mix, so very anxious for the UOA. Was the sample you sent in very thick?
These oil pics from a thread on Powerstroke.Org look the same (this has already been mentioned in post #21 of this thread, but I'll post the links here so the similarities can EASILY be seen):
Post #28 in the link above confirmed coolant in the oil, and it didn't seem to take much (1.3% or around a pint of coolant). Loss of a quart or so certainly isn't going to get noticed with the degas level fluctuating normally.
I've been using the Archoil ar9100 now for 60,000kms give or take and I've always purchased mine from amazon and there's never been any clumping or crystallization and I have no idea what's causing that in other bottles, but maybe just age/settling and some chemical reaction.....I dunno?
This 0w40 T6 with 16oz of ar9100 added has around 7000kms fresh from the Fumoto valve on my oil pan and it's got no chunks at all and the color is the typical black we all see after this mileage. I use 0w40 year round and never go over 8000km OCI's so I doubt I'll ever have major stiction issues and I most likely gain little benefit from the ar9100, but dumb dumb that I am I like to run something in my oil just for the warm fuzzies lol so I'm going to try out Hot Shots FR3 friction reducer on my next oil change and that stuff is a clear liquid in a clear bottle so never any chance of dumping clump junk in the engine block
The pictures you posted do not look like the pic from @jsm180 , or mine for that mater. Not the least bit of brown coloring that I can see. The last one with the tan sludge looks the most like coolant mix, so very anxious for the UOA. Was the sample you sent in very thick?
yes the sample was very thick and imo my filter looks exactly like the op.02/10/25 update here....upon collecting almost a gallon of my old oil, the video misrepresented the color being brownish, it was pure black just like my filter was. Here is the test results from Caterpillar and also as a side note from mine and the Caterpillar technician observations the oil is getting thicker over time as it sits in a container.
Last edited by Thinblueline; Feb 11, 2025 at 08:49 AM.
Yeah it does. It looks just like the pic's in the thread on the Org that I linked to above. In the Org thread, he was wondering about the fact that he had added Rev-X, until the UOA results were obtained (coolant). He also had other serious issues (most likely including running the engine hot), but the oil looks the same. EDIT - Who knows, maybe when coolant mixes w/ hot oil and these oil additives, there will be a reaction like this, the additive being a sort of catalyst, but coolant contamination must be present for it to happen.
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