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Castrol Edge 0w40 - Subaru FA20 (Scion FR-S) - 3469km #5350290 02/14/20 09:34 PM
Joined: Sep 2010
Posts: 65
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VolkswagenFox21 Offline OP
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Here's my yearly UOA on my FRS. I ran this oil last summer. It's a summer car that I drive every couple of days in a spirited manner. So far every report has been fine and looks to be fine again. This year I might bring the car to a race track, so we'll see how that'll effect the wear numbers!

[Linked Image from i.imgur.com]


2009 VW Jetta City, 2.Slow - 5MT
2016 Scion FR-S - 6MT
2020 Hyundai Tucson 2.0 GDI
Re: Castrol Edge 0w40 - Subaru FA20 (Scion FR-S) - 3469km [Re: VolkswagenFox21] #5350723 02/15/20 11:41 AM
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wdn Offline
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Changing it way too early, but sure it looks fine.

Re: Castrol Edge 0w40 - Subaru FA20 (Scion FR-S) - 3469km [Re: VolkswagenFox21] #5350726 02/15/20 11:47 AM
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Bjornviken Offline
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👍👌

Re: Castrol Edge 0w40 - Subaru FA20 (Scion FR-S) - 3469km [Re: VolkswagenFox21] #5350734 02/15/20 12:00 PM
Joined: Jun 2004
Posts: 259
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Ded Mazai Offline
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What gas do you use? What was you previous oil?


BRZ | M1 HM 5W-20, FU | PZ Synchromesh.
Re: Castrol Edge 0w40 - Subaru FA20 (Scion FR-S) - 3469km [Re: Ded Mazai] #5351787 02/16/20 02:41 PM
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VolkswagenFox21 Offline OP
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Originally Posted by wdn
Changing it way too early, but sure it looks fine.


I don't want to go longer than a year.

Originally Posted by Ded Mazai
What gas do you use? What was you previous oil?


I use Esso 93. The previous oil was Castrol Edge 0w30.


2009 VW Jetta City, 2.Slow - 5MT
2016 Scion FR-S - 6MT
2020 Hyundai Tucson 2.0 GDI
Re: Castrol Edge 0w40 - Subaru FA20 (Scion FR-S) - 3469km [Re: VolkswagenFox21] #5352190 02/16/20 09:42 PM
Joined: Jun 2004
Posts: 259
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Ded Mazai Offline
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Castrol 0W-30 looks a lot better. I am glad that Esso 93 did not cause any noticeable fuel dilution.


BRZ | M1 HM 5W-20, FU | PZ Synchromesh.
Re: Castrol Edge 0w40 - Subaru FA20 (Scion FR-S) - 3469km [Re: VolkswagenFox21] #5395562 04/06/20 02:48 PM
Joined: May 2019
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Danr42 Offline
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There seams to be a lot of silicone to me. I would be tempted to try a different air filter, whatever brand you have in there now is not doing a very good job.

Re: Castrol Edge 0w40 - Subaru FA20 (Scion FR-S) - 3469km [Re: VolkswagenFox21] #5396169 04/07/20 08:33 AM
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bluesubie Offline
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Originally Posted by VolkswagenFox21
The previous oil was Castrol Edge 0w30.


So the viscosity on the 0W-30 was thicker than the 0W-40 even with a 789 km longer OCI?


'20 Subaru Outback Onyx XT | Idemitsu Zepro 0W-20
'04 Subaru Forester 2.5XT | Castrol Edge 0W-40
Re: Castrol Edge 0w40 - Subaru FA20 (Scion FR-S) - 3469km [Re: VolkswagenFox21] #5396507 04/07/20 02:19 PM
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NuttCase Offline
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Surely 10.65 cSt @ 100C is out of spec for a 0W40? Virgin values for Castrol 0W40 typically 13+. Shouldn't be a problem for the engine though, that factory fill looks like 0W20.


'15 Merc C300 diesel hybrid, Shell Helix Ultra 0W30 ECT C3
'13 Ford Fiesta 1.25, Shell Helix Ultra 5W30AG
'17 Audi R8 V10, Motul 8100 X-Clean+ 5W30
'19 Mini JCW, Shell Helix Ultra 0W30 ECT C3
Re: Castrol Edge 0w40 - Subaru FA20 (Scion FR-S) - 3469km [Re: NuttCase] #5402603 04/14/20 03:35 AM
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VolkswagenFox21 Offline OP
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Originally Posted by Danr42
There seams to be a lot of silicone to me. I would be tempted to try a different air filter, whatever brand you have in there now is not doing a very good job.


I'm using the stock Denso filter. I change them every year or two. High silicone numbers seem to be normal from these engines. Takes a long time to "wash out." Just replaced it with a new one.


Originally Posted by bluesubie
Originally Posted by VolkswagenFox21
The previous oil was Castrol Edge 0w30.


So the viscosity on the 0W-30 was thicker than the 0W-40 even with a 789 km longer OCI?

Originally Posted by NuttCase
Surely 10.65 cSt @ 100C is out of spec for a 0W40? Virgin values for Castrol 0W40 typically 13+. Shouldn't be a problem for the engine though, that factory fill looks like 0W20.


I didn't even look at that number since the OCI is so short, but it does look like it sheared down into 30w territory. The car was stuck idling in traffic a lot more so maybe that's the reason? I'm not too worried though.


2009 VW Jetta City, 2.Slow - 5MT
2016 Scion FR-S - 6MT
2020 Hyundai Tucson 2.0 GDI
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