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Re: 2015 Forester XT QSUD D1G2 [Re: bluesubie] #4963476
12/28/18 01:37 PM
12/28/18 01:37 PM
Joined: Jun 2002
Posts: 18,360
Elizabethtown, Pa
Al Offline
Al  Offline
Joined: Jun 2002
Posts: 18,360
Elizabethtown, Pa
Originally Posted by bluesubie
Thanks! Looks like it was missing between MY2008 and MY2014.

Back to my original comment, other than in a new engine typically you’ll see higher copper from oil cooler leaching when running high ZDDP oil.

https://www.machinerylubrication.com/Read/646/copper-diesel-engine-oil

Would be interesting to have Terry Dyson’s comments on this but I don’t know of any Subaru DIT owners that have used him that ran PP.

This is why I am not concerned about using a 8+ cSt. oil in the FA engine. I intend to get Terry to look at my UOA after a couple analysis on the QSUD. Seems like a great oil.


Re: 2015 Forester XT QSUD D1G2 [Re: jbutch] #4968991
01/03/19 04:43 PM
01/03/19 04:43 PM
Joined: Jun 2017
Posts: 48
Canada
jbutch Offline OP
jbutch  Offline OP
Joined: Jun 2017
Posts: 48
Canada
Here is an update, I extended to 7000km and the sample was still great.

Aluminum is a bit high, but other than that, its pretty darn good.

OilReports.pdf (11 downloads)
Re: 2015 Forester XT QSUD D1G2 [Re: jbutch] #4969007
01/03/19 05:04 PM
01/03/19 05:04 PM
Joined: Jun 2017
Posts: 48
Canada
jbutch Offline OP
jbutch  Offline OP
Joined: Jun 2017
Posts: 48
Canada
Re upload as jpeg.

OilReports(2)-page-001.jpg
Re: 2015 Forester XT QSUD D1G2 [Re: jbutch] #4969040
01/03/19 05:45 PM
01/03/19 05:45 PM
Joined: Mar 2017
Posts: 6,986
...
PimTac Offline
PimTac  Offline
Joined: Mar 2017
Posts: 6,986
...
Nothing wrong with that aluminum number. In fact it’s lower if you figure it as ppm per 1000km

Good report.


Cannot see signatures any longer so it doesn’t matter.
Re: 2015 Forester XT QSUD D1G2 [Re: PimTac] #4969042
01/03/19 05:48 PM
01/03/19 05:48 PM
Joined: Jun 2017
Posts: 48
Canada
jbutch Offline OP
jbutch  Offline OP
Joined: Jun 2017
Posts: 48
Canada
Originally Posted by PimTac
Nothing wrong with that aluminum number. In fact it’s lower if you figure it as ppm per 1000km

Good report.


Yeah, I'm glad the copper issue is finally resolved.

QSUD is a really good oil, underated imo.

Re: 2015 Forester XT QSUD D1G2 [Re: jbutch] #4971673
01/06/19 07:19 PM
01/06/19 07:19 PM
Joined: Jun 2002
Posts: 18,360
Elizabethtown, Pa
Al Offline
Al  Offline
Joined: Jun 2002
Posts: 18,360
Elizabethtown, Pa
Looks great. The FA engine is one of the best engines ever developed. Hang on to it!! It was a joint development by Subaru/Toyota in 2012 and in the unturbo state was 197HP and ffinally 205..Unturboed and again used 20 wt oil. The Turbo engine has won Wards best engines Three times since 2013. I was not ready to buy a 2018 Forester but since this was the last year for it in the Forester I had no choice. I only have 6800 miles on mine. I will do a UOA in maybe 6 months.

I wish they put the unturboed version in the Crosstrek. I might have bought it!

Last edited by Al; 01/06/19 07:21 PM.

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