Amsoil Euro 0W-30 10K mi, 2017 CRV 1.5T - FUEL!

[parshisa]

Nor would I, but BSlabs historically reports that level as 0 or "trace." Maybe sometimes 0.5%. So, most people here on the forum probably _would_ consider 3% as 'low,' they just wouldn't realize it.

I know Pablo knows, because he knows his lab measures fuel via GC, but most of the readers have no idea.

Sorry for your troubles, Pablo. Hopefully(?) it's an injector you can replace and (partly) correct the problem.

I’m well aware of the difference between the methodology BS and OA labs use. Everything is relative, so the 3% dilution is. For port injected engine it is high, for turbocharged DI engine - I don’t think it is. No ill effects that I can see thus far at 84k miles. Viscosity loss is effectively managed by running higher grade oil, no sweat at all.

 

[kschachn]

I’m well aware of the difference between the methodology BS and OA labs use. Everything is relative, so the 3% dilution is. For port injected engine it is high, for turbocharged DI engine - I don’t think it is. No ill effects that I can see thus far at 84k miles. Viscosity loss is effectively managed by running higher grade oil, no sweat at all.

Yes a higher grade will help the diluted viscosity loss but it’s not good for the VM.

 

[parshisa]

Yes a higher grade will help the diluted viscosity loss but it’s not good for the VM.

What’s VM?

 

[kschachn]

What’s VM?

The viscosity modifier.

 

[Gene K]

The Civic in 2016 had the 1.5L Turbo in only the EX-T and above.

Help me get my story straight.

(Edited for accuracy)

Your welcome.

 

[Pablo]

UMH. No fuel report.

 

[himemsys]

Here’s the last change with 10200 mi.

H

Post in thread '2018 CR-V, Mobil 1 ESP 5W30, 4502 miles'

Sep 10, 2023

Here’s what the air filter looks like.

• himemsys

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I’m currently using Castro Euro 5W40 and will be posting a UOA in the next couple of days.

Here it is. Looks pretty similar to yours, your wear metals per 1k miles are a little better, though mine has improved over the previous OCI.

H

Thread 'Castrol Euro 5W40 | 3755 mi | 2018 Honda CRV 1.5l - High Fuel'

Nov 16, 2024

Excessive fuel dilution continues on our 2018 CRV. This time, though, the wear metals are nearly normal for this engine. Last year I adopted a new strategy to contain the worst of the fuel dilution in a short, winter OCI. This means I'm changing the oil right before the cold winter hits, and changing again when the winter freezes stop and warm weather becomes consistent. The previous OCI was from 11/19 to 3/17, and this OCI was from 3/17 to 11/10. Despite both UOAs showing >5% fuel, this OCI had a nearly normal wear metal profile. I'm guessing this OCI was closer to 6% while the...

• himemsys
• Replies: 5
• Forum: Used Oil Analysis - Gasoline

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[Pablo]

Thanks

Interesting but no one has commented the two lab comparison. Metals are very close but the viscosity with UMH is in grade. Yet no fuel in oil measurement. Frustrating.

 

[himemsys]

Thanks

Interesting but no one has commented the two lab comparison. Metals are very close but the viscosity with UMH is in grade. Yet no fuel in oil measurement. Frustrating.

That is weird. 1 cSt difference between the labs. Also UMH has a much higher oxidation value. Hard to say why the discrepancy. Were both samples taken at the same time, from the same point in the drain process? I suppose it could just be lab variation, but 1 cSt is kind of a lot. Do you know the virgin oxidation value of this oil?

 

[Pablo]

Both samples came from same sterile sampling container.

I’m not one hundred percent sure what virgin oxidation is. Reported in the past as 30 but I was told 40-45.

 

[edyvw]

Did you check is there oil in the first sample?

On serious note, if it smells, I would say first UOA is correct, especially considering history of those engines.