Can a GDI engine blacken oil in just 25 miles? (See pics)

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It'll blacken your tailpipe like this from the '18 ACCENT ( 1.6 Ltr. w/ G.D.I. ) . So much for air quality ( particles ) . Good chance that other D.I. tailpipes would be the same . E.F.I. is better for air quality ( particles ) and reliability .

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The sooty black annoys me on my '17 Accord 2.4L. No matter how often I wash/clean it, the chrome around my exhaust has that.

The rest of the fleet in front of house you can't see the exhaust pipe so even though probably the same, it's not a stand out.
 
When things like this happen, I always wonder, is it intentional or did they just forget? How do you forget though? I can see forgetting to put oil back in the engine, which would be catastrophic. But to not change it?
Know what you mean. I did/do not think intentional at all. I suspected non oil changed BUT as a mistake.
A lot of those techs can have more and more work dumped on them even as their workplaces are constantly short handed. HELP WANTED ads are posted eternally now at too many places. A sure way for simple mistakes to happen. The techs can get overwhelmed with too many work orders. Frustrated when they know from the start they can not complete all. A very common thing for some garages is to take on more jobs than they know they can complete in a certain amount of time. That is never good for the poor workers or the customers. Too much multi-tasking can easily = confusion + mistakes.
 
Understand the inclination to give the shop the benefit of the doubt, reinforced by place’s professional appearance.

Hate to acknowledge it, but been screwed by a couple/few clean, “professional,” reputable, even high-end shops, much to my (naive) dismay. Have learned to not hang on to well-meaning “hope” for a benign explanation, when the actions/outcomes are readily attributable to greed/dishonesty. Of which, the Service writer may/may not know about. Humans…. Way of the world, unfortunately.
 
Understand the inclination to give the shop the benefit of the doubt, reinforced by place’s professional appearance.

Hate to acknowledge it, but been screwed by a couple/few clean, “professional,” reputable, even high-end shops, much to my (naive) dismay. Have learned to not hang on to well-meaning “hope” for a benign explanation, when the actions/outcomes are readily attributable to greed/dishonesty. Of which, the Service writer may/may not know about. Humans…. Way of the world, unfortunately.
This is why I do these things myself. It's the only way that I know for sure the job is done right and with the correct fluids, etc. I sleep better knowing I have no concern about an error in doing it myself. Even when the risk is quite small if done by a shop or dealer, and their errors are infrequent I feel better about it when I've done it myself.
 
my daughter has a 2012 Hyundai Sonata with the 2.4L Theta II. dealer last year completed the extended warranty bottom end replacement due to failed bearings iirc. I've moved it over along with the rest of my vehicles to VRP. I must say though I don't foresee owning another GDI any time soon.
 
Understand the inclination to give the shop the benefit of the doubt, reinforced by place’s professional appearance.

Hate to acknowledge it, but been screwed by a couple/few clean, “professional,” reputable, even high-end shops, much to my (naive) dismay. Have learned to not hang on to well-meaning “hope” for a benign explanation, when the actions/outcomes are readily attributable to greed/dishonesty. Of which, the Service writer may/may not know about. Humans…. Way of the world, unfortunately.
Right. I would guess the majority of us here have been zinged a time or two when turing a vehicle over to a shop for any kind of work.
 
Some... mechanics today get paid differantly in that its a portion of the book time, or some variation. Not by the hour exactly. I wouldent say that there wasent any benifit to the tech. It is harder and harder for These tech and others to make a honest living. Also they are tracked by productivly completed jobs, call backs and damaged cause by repairs. Raises are promotions are based on the bottom line.

Diesels, for lack of a better word "contaminate" the oil much quicker. Soot up is a better term but visible engine oil contamination is PM. In most case the PM (particulate Matter) deposits don't harm anything its just the result of diesel combustion and it isn't nearly as clean as Gasoline. Some engines that burn propane or natural gas stay twice as clean as gasoline. Jet engines go years without a oil change. TMI Anyway an Oil analyis will tell on this one. Oddly, ive never done one. Yet!
 
I never leave the dealer's or oil change shop lot, without raising the hood - pulling the dipstick and looking under the vehicle first for leaks.

I don't trust any place that sends me to another part of the dealership (lounge) - unable to watch the simple, short oil change. I also never get an oil change which places oil inside my engine thru a bulk tank gun.

That oil could have came from anywhere on that premise and god only knows what viscosity it really is.
 
Some... mechanics today get paid differantly in that its a portion of the book time, or some variation. Not by the hour exactly. I wouldent say that there wasent any benifit to the tech. It is harder and harder for These tech and others to make a honest living. Also they are tracked by productivly completed jobs, call backs and damaged cause by repairs. Raises are promotions are based on the bottom line.

Diesels, for lack of a better word "contaminate" the oil much quicker. Soot up is a better term but visible engine oil contamination is PM. In most case the PM (particulate Matter) deposits don't harm anything its just the result of diesel combustion and it isn't nearly as clean as Gasoline. Some engines that burn propane or natural gas stay twice as clean as gasoline. Jet engines go years without a oil change. TMI Anyway an Oil analyis will tell on this one. Oddly, ive never done one. Yet!
You have reminded me of a thing that has crossed my mind when you mention engines on propane or natural gas. Wonder if those oils that are "made from natural gas" would somehow stay cleaner? Take more time to load up with the dirty looking stuff? The PM and whatever else is the results of GDI engines these days. The stuff that dirties/colors/contaminates motor oils so quickly in some vehicles.
 
Oil going dark not long after having the oil / filter change is possibly due to not letting the oil drain long enough , not changing the oil filter or both . Had this take place at a HYUNDAI service center . Discovered drained oil ( 1/4 quart or more ) all over the top of the engine splash guard and fresh oil on the engine and other areas due to hurrying . Cleaned all of it up in their lot . Did another O.C. shortly after due to the oil turning darker and have been doing the O.C.s' myself since then . Can't imagine how many vehicles that have / had oil all over the bottom of their cars after O.C.s.. Great for the environment .
 
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