PUP 0W-20 8k kms; 2024 Santa Fe 1.6T Hybrid 19k kms

[AS]

Vehicle history: bought new and did the first oil change at 3,000km (1,865mi) using 0w-20 PUP, second oil change at 11,000km (6,835mi) using the same, third oil change (this one) at 19,000km (11,800mi) also using PUP. So 8,000km/5,000mi OCI.

It's a 1.6T hybrid that did some light towing and I'm in Canada and we just had a pretty harsh winter so this oil change includes that.

Used CAT/Toromont for the UOA, they are local and cost 1/4 of Blackstone, results were emailed in I think 10 days.

 

[Rand]

your title is incorrect it should read mileage(or km) on the oil not vehicle mileage.

I give you 2 thumbs up for posting a UOA I can actually read.

Is fuel dilution testing available? That might be interesting for a TGDI engine in winter. Mine was over 5%

 

[AS]

your title is incorrect it should read mileage(or km) on the oil not vehicle mileage.

I give you 2 thumbs up for posting a UOA I can actually read.

Is fuel dilution testing available? That might be interesting for a TGDI engine in winter. Mine was over 5%

Oh edited!

I believe they offer different levels of analysis for additional cost, I'll see next time I get a kit. I could've sworn fuel dilution was included with this kit though, they did water and antifreeze, going to email to clarify

 

[OVERKILL]

your title is incorrect it should read mileage(or km) on the oil not vehicle mileage.

I give you 2 thumbs up for posting a UOA I can actually read.

Is fuel dilution testing available? That might be interesting for a TGDI engine in winter. Mine was over 5%

They told me they don't do fuel dilution on gas anymore, only diesel. That's why I stopped using them and switched to OAI.

 

[AS]

They told me they don't do fuel dilution on gas anymore, only diesel. That's why I stopped using them and switched to OAI.

Oh well that sucks, and deceiving, their website other resources still show fuel dilution as part of the analysis.

 

[AS]

They told me they don't do fuel dilution on gas anymore, only diesel. That's why I stopped using them and switched to OAI.

They replied and told me they only do it if the V100 is low indicating dilution. I asked if they are able to just do it upon request in the future, technically we are paying for it.

They've now said

"Our gas chromatograph (GC) is more accurate at detecting diesel in oil than gasoline, due to gasoline's higher volatility. The most reliable method for monitoring fuel dilution—especially for gasoline engines—is to track viscosity deviation. Ideally, the viscosity at 100°C (V100) should not deviate more than ±2 cSt from the expected value."

 

[OVERKILL]

They replied and told me they only do it if the V100 is low indicating dilution. I asked if they are able to just do it upon request in the future, technically we are paying for it.

Here's the response I got back in 2019, which is when their report format changed to the style you were given:

Good day *******,

Our Fuel analysis test is for Diesel in Oil. That test would not be applicable for this Gasoline engine.

Our SOS program is geared towards oil analysis of diesel engines, not gasoline engines. Yes, there are methods available to test for gasoline in oil, but unfortunately that is currently not part of the standard test list.

Best practice would be to follow recommendations in your vehicle maintenance manual.

 

[AS]

Looks like I'll be finding an alternative UOA lab in Canada/Ontario

 

[squidward]

Do you drive long distances a lot?
Hyundai's 1.6 turbo hybrid engine is said to have a high gasoline content in short-distance driving

 

[Sienna dude]

Iron is pretty high, or because engine is pretty new. Also, viscosity has slipped to 7.1, that's not good. You have fuel dilution problem. Cut your OCI short. Pennzoil Ultra 0w20 is among the thickest 0w20's out there, starts at 8.8. 7.1 would make me nervous in a car that calls for 0w20.
In my non Turbo Toyota hybrid(I assume it lacks the muscle to shear oil), 3.4% fuel made the oil slip from 8.8 to 7.8. Your fuel might be higher. But yours is a hot running turbo so some of the viscosity loss could be because of that.

 

[AS]

Iron is pretty high, or because engine is pretty new. Also, viscosity has slipped to 7.1, that's not good. You have fuel dilution problem. Cut your OCI short. Pennzoil Ultra 0w20 is among the thickest 0w20's out there, starts at 8.8. 7.1 would make me nervous in a car that calls for 0w20.
In my non Turbo Toyota hybrid(I assume it lacks the muscle to shear oil), 3.4% fuel made the oil slip from 8.8 to 7.8. Your fuel might be higher. But yours is a hot running turbo so some of the viscosity loss could be because of that.

Their lab manager has now told me a V100 deviation great than 2 is a concern, 1.7 over 8,000km is acceptable. No matter what is acceptable, I would have liked to have fuel included in the test. I wanted to know, and thought that's what I paid for per their website in multiple locations.

I cruised some other 0w20 posts and people with a V100 in the low 7s were showing less than 1% fuel

 

[kschachn]

I cruised some other 0w20 posts and people with a V100 in the low 7s were showing less than 1% fuel

Without knowing how much fuel is in the sample it’s useless to try and diagnose a viscosity deviation.

Most of those UOA you cruised are likely Blackstone analyses and they are utterly incapable of accurately determining fuel in the sample. They most often estimate low and sometimes wildly low.

Most viscosity deviations seen in UOA are due to fuel or poor methodology in measurement.

 

[kschachn]

In my non Turbo Toyota hybrid(I assume it lacks the muscle to shear oil), 3.4% fuel made the oil slip from 8.8 to 7.8. Your fuel might be higher. But yours is a hot running turbo so some of the viscosity loss could be because of that.

It’s not about “muscle” it’s about engine design. You can have an engine with high output that doesn’t shear the VM, or the reverse.

 

[twX]

I cruised some other 0w20 posts and people with a V100 in the low 7s were showing less than 1% fuel

If those were Blackstone results, then those fuel measurements weren't accurate.

My last UOA with PP 0W-20 came in at 7.3 cST and 5% fuel (CAT Finning UOA), and PP starts out 0.2 cST thinner than PUP. Both of these oils are pretty shear-stable, so most of the viscosity loss will be from fuel. Your fuel dilution is probably around 6%.

 

[odie]

Use the P.U.P. ( S.P.,GF-6A ) for both '25 SOULs with the 2.0 Ltr. ( M.P.I. ) . They're on 2nd O.C. of it and will likely stay with the P.U.P. 0w-20 . Can't go wrong for the price of less than $27 for a five quart bottle . 2nd reason is the BORON in it , don't get that with P.P.. Use the HYUNDAI / KIA 26300-35505 oil filter under $6 each . Thanks for the U.O.A.s'.

 

[FZ1]

Vehicle history: bought new and did the first oil change at 3,000km (1,865mi) using 0w-20 PUP, second oil change at 11,000km (6,835mi) using the same, third oil change (this one) at 19,000km (11,800mi) also using PUP. So 8,000km/5,000mi OCI.

It's a 1.6T hybrid that did some light towing and I'm in Canada and we just had a pretty harsh winter so this oil change includes that.

Used CAT/Toromont for the UOA, they are local and cost 1/4 of Blackstone, results were emailed in I think 10 days.

View attachment 285483

Break in wear. Vis looks like some fuel dilution. .02