(10 year old) Pennzoil Ultra Euro L 5w-30, 5785 mile OCI, 2019 Subaru Outback 3.6R

[GRWLEX]

9 months ago I posted here, about some old oil I had acquired from the great AutoZone sale of 2017. This year I was back home more and finally got the chance to run it.

This OCI was done from January to June. Daily driver. Short trips, 0.5 miles to work and back, 10-30 miles around town, and multiple weekend trips of ~500 miles. The vehicle was kept garaged. Filter was a 2013 manufactured Fram Ultra, bought off ebay when those 6-pack clearance deals were still a thing.

Whats complicating is this 3.6r takes every bit of 8 quarts to fill. When looking for a spare bottle for top off oil on my oil change I went through the old bottles that I had kept from the last oil change (the one tested here). I found two empty bottles of Pennzoil Ultra Eruo L 5w-40, with 5 bottles of 5w-30. I must have inadvertently dumped in 2 bottles of thicker grade and never noticed.

link to last OCI

 

[Nuclear_42]

I would not use engine oil that old. Based on this video I agree that 10 years is the limit. Your elevated wear could be caused by the old oil.

 

[edyvw]

I would not use engine oil that old. Based on this video I agree that 10 years is the limit. Your elevated wear could be caused by the old oil.

Elevated Copper in Subaru is fairly normal thing due to leaching from oil cooler.
IMO, this report is a blast!

 

[Lubener]

I would not use engine oil that old. Based on this video I agree that 10 years is the limit. Your elevated wear could be caused by the old oil.

I don't buy into your belief and someone's opinion on a you tube video. I have used oil older than 10 years and never had an issue.

 

[Hirev]

So 10 year oil didn't turn your engine to Jell-O.

 

[demarpaint]

Elevated Copper in Subaru is fairly normal thing due to leaching from oil cooler.
IMO, this report is a blast!

+1 The 10 year old oil did fine.

 

[fantastic]

Oil seemed to do the job under age.

 

[cptbarkey]

I would not use engine oil that old. Based on this video I agree that 10 years is the limit. Your elevated wear could be caused by the old oil.

Junk information.

 

[BMWTurboDzl]

I don't buy into your belief and someone's opinion on a you tube video. I have used oil older than 10 years and never had an issue.

The data shows what is shows. There's no opinion there. The only difference is that the analysis in the videos were performed on virgin oil (VOA) and the OP has a UOA.

 

[SubieRubyRoo]

I would not use engine oil that old. Based on this video I agree that 10 years is the limit. Your elevated wear could be caused by the old oil.

Elevated wear, where?

 

[BMWTurboDzl]

9 months ago I posted here, about some old oil I had acquired from the great AutoZone sale of 2017. This year I was back home more and finally got the chance to run it.

This OCI was done from January to June. Daily driver. Short trips, 0.5 miles to work and back, 10-30 miles around town, and multiple weekend trips of ~500 miles. The vehicle was kept garaged. Filter was a 2013 manufactured Fram Ultra, bought off ebay when those 6-pack clearance deals were still a thing.

Whats complicating is this 3.6r takes every bit of 8 quarts to fill. When looking for a spare bottle for top off oil on my oil change I went through the old bottles that I had kept from the last oil change (the one tested here). I found two empty bottles of Pennzoil Ultra Eruo L 5w-40, with 5 bottles of 5w-30. I must have inadvertently dumped in 2 bottles of thicker grade and never noticed.

link to last OCI

View attachment 242233View attachment 242234

Without the two bottles of 5w40 in this fill I'd say the viscosity would have been significantly lower and possibly out of grade.

 

[edyvw]

Without the two bottles of 5w40 in this fill I'd say the viscosity would have been significantly lower and possibly out of grade.

Is 5W30 regular ILSAC? Seems so. Pennzoil 5W30 is almost 5W20 initially. Doesn’t take long to drop into 20.
He said he put Euro L 5W40. That oil doesn’t exist. Did he mix regular 5W30 and 2qt of 5W30 Euro L?

 

[SubieRubyRoo]

He said he put Euro L 5W40. That oil doesn’t exist. Did he mix regular 5W30 and 2qt of 5W30 Euro L?

Most likely… the Euro L is almost a 40 grade with an initial viscosity of 12.3cSt…

 

[BMWTurboDzl]

Is 5W30 regular ILSAC? Seems so. Pennzoil 5W30 is almost 5W20 initially. Doesn’t take long to drop into 20.
He said he put Euro L 5W40. That oil doesn’t exist. Did he mix regular 5W30 and 2qt of 5W30 Euro L?

Ya, I saw that but I remember in the way back machine that QS was selling 5w40 MST (LL04) so I gave @GRWLEX the benefit of the doubt that there was also 10 yr old 5w40 Ultra Euro L. Maybe he mixed Pennzoil Euro 5w40 (LL01) or just Pennzoil Ultra 5w40 instead? *shrug*

 

[edyvw]

Ya, I saw that but I remember in the way back machine that QS was selling 5w40 MST (LL04) so I gave @GRWLEX the benefit of the doubt that there was also 10 yr old 5w40 Ultra Euro L. Maybe he mixed Pennzoil Euro 5w40 (LL01) or just Pennzoil Ultra 5w40 instead? *shrug*

I cannot remember they ever labeled 5W40 as Euro L. Who knows.

 

[BMWTurboDzl]

I cannot remember they ever labeled 5W40 as Euro L. Who knows.

Agree. Me neither.

 

[GRWLEX]

Ya, I saw that but I remember in the way back machine that QS was selling 5w40 MST (LL04) so I gave @GRWLEX the benefit of the doubt that there was also 10 yr old 5w40 Ultra Euro L. Maybe he mixed Pennzoil Euro 5w40 (LL01) or just Pennzoil Ultra 5w40 instead? *shrug*

Ya, I saw that but I remember in the way back machine that QS was selling 5w40 MST (LL04) so I gave @GRWLEX the benefit of the doubt that there was also 10 yr old 5w40 Ultra Euro L. Maybe he mixed Pennzoil Euro 5w40 (LL01) or just Pennzoil Ultra 5w40 instead? *shrug*

Looks like it was just Pennzoil 5w-40 Euro. No L.