Super Tech Synthetic Blend 5W-30 3.0k miles / 2008 Subaru Forester X 2.5L 137k miles

[Soobs]

Hey all,

Here’s my latest UOA on the Forester (this time with TBN). This Super Tech Synthetic Blend 5W-30 ran for about 6 months and 3,061 miles. During this run the oil saw a lot of 100 degree days, a big mountain trip, and a fair bit of city driving. This oil ran with a Subaru OEM oil and air filter. The previous run (first UOA) was with Beck/Arnley oil and air filters.

New oil in was Valvoline High Mileage Synthetic Blend 5W-30 and new Subaru oil filter. Cheers!

 

[SteveG4]

Nice report. Low wear metals. Your car appears to have sheared that blended oil a bit. No harm done -- you enjoyed the SUV and thoroughly used the oil.

Rinse, lather, and repeat at a 3000 to 4000 mile OCI. I do the same with my small AWD SUV with a 4-cyl DI engine.

 

[oggb]

Most importantly (at least for an EJ25 UOA...) there's no sodium or potassium.

 

[wemay]

Looks good. I wouldn't change a thing.

 

[FZ1]

Hey all,

Here’s my latest UOA on the Forester (this time with TBN). This Super Tech Synthetic Blend 5W-30 ran for about 6 months and 3,061 miles. During this run the oil saw a lot of 100 degree days, a big mountain trip, and a fair bit of city driving. This oil ran with a Subaru OEM oil and air filter. The previous run (first UOA) was with Beck/Arnley oil and air filters.

New oil in was Valvoline High Mileage Synthetic Blend 5W-30 and new Subaru oil filter. Cheers!

View attachment 121822

Looks, really, good. Noticing the greater viscosity of the previous oil, what oil and grade was it?

 

[Soobs]

Looks, really, good. Noticing the greater viscosity of the previous oil, what oil and grade was it?

Both runs were with Super Tech Synthetic Blend 5W-30. I could only speculate that the oil sheared on the second run due to the season (hot temps) and more demanding driving (mountain trips, more city).

 

[FZ1]

Both runs were with Super Tech Synthetic Blend 5W-30. I could only speculate that the oil sheared on the second run due to the season (hot temps) and more demanding driving (mountain trips, more city).

Interesting. Sounds right, Thanks.