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Re: Amsoil 5W30 Signature Series too thin for Turbo Subaru or 450 hp Ecoboost [Re: Navi] #5209637 09/10/19 08:18 PM
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JLTD Offline
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Amsoil 0w-40 is 3.76. Just sayin'.....


Lates.
Re: Amsoil 5W30 Signature Series too thin for Turbo Subaru or 450 hp Ecoboost [Re: Navi] #5209644 09/10/19 08:27 PM
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PimTac Offline
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The OP was going to run what he wanted to run. Confirmation bias runs deep.


2017 Mazda CX5
Valvoline Advanced Synthetic 0w20
Roki OEM filter.
Re: Amsoil 5W30 Signature Series too thin for Turbo Subaru or 450 hp Ecoboost [Re: Navi] #5209711 09/10/19 10:28 PM
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Mainia Offline
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I am running Delo XSP 5w-40 in my fuel diluting Hyundai 1.6T. I have yet. To do a UOA on this oil , but it stayed cleaner then most other oils I have used when checking oil every 1,000 miles.


2018 Lowered Hyundai Kona AWD 1.6T
2014 Toyota Rav4 AWD
2005 Honda Civic
Re: Amsoil 5W30 Signature Series too thin for Turbo Subaru or 450 hp Ecoboost [Re: Mainia] #5209714 09/10/19 10:54 PM
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Originally Posted by Mainia
I am running Delo XSP 5w-40 in my fuel diluting Hyundai 1.6T. I have yet. To do a UOA on this oil , but it stayed cleaner then most other oils I have used when checking oil every 1,000 miles.


I ran Castrol Edge 0w40 in my old Veloster 1.6T, everything else seemed "burnt" when changing 3k miles in.

Re: Amsoil 5W30 Signature Series too thin for Turbo Subaru or 450 hp Ecoboost [Re: Navi] #5209727 09/10/19 11:46 PM
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Originally Posted by Navi
If there is absolutely zero issues with 5W30 then how come in Europe we see 5W40 and 0W40? If I go on the Mobil 1 website and start plugging in various model names from Audi and MB how come it tells me to use 5W40?



Because Autobahn. Nobody ever seems to talk about this, but nowhere in North America can you maintain 120 mph for two hours, for example. On the Autobahn, save for having to slow to 80 mph sometimes, you can do that no problem. So they have to recommend oils that will not thin out at 240+ degree oil temps.

Re: Amsoil 5W30 Signature Series too thin for Turbo Subaru or 450 hp Ecoboost [Re: Jimmy_Russells] #5209728 09/10/19 11:56 PM
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Originally Posted by Jimmy_Russells
Originally Posted by Navi
If there is absolutely zero issues with 5W30 then how come in Europe we see 5W40 and 0W40? If I go on the Mobil 1 website and start plugging in various model names from Audi and MB how come it tells me to use 5W40?



Because Autobahn. Nobody ever seems to talk about this, but nowhere in North America can you maintain 120 mph for two hours, for example. On the Autobahn, save for having to slow to 80 mph sometimes, you can do that no problem. So they have to recommend oils that will not thin out at 240+ degree oil temps.


Exactly.

The same reason you see vehicles here that people track bump up to 40 and 50 weights while they're tracking. For example, a 350Z takes what, 5w30? But nobody taking it on the track for the weekend (let me rephrase, nobody knowing what they're doing) is gonna run 5w30 for track time, theyll bump it to a 40 or 50 weight.

Re: Amsoil 5W30 Signature Series too thin for Turbo Subaru or 450 hp Ecoboost [Re: Navi] #5209740 09/11/19 12:59 AM
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wemay Offline
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30, 40 and nowadays 20 will work if you're spec'd for it. But let's continue with the passive aggressive fear mongering why don't we. (Not specifically aimed at the OP)


19 VW Passat Wolfsburg TSI (VW Genuine 0W-20+OEM)
13 Hyundai Santa Fe Sport 2.0T (Shell RGT 5W-30+OEM)
Re: Amsoil 5W30 Signature Series too thin for Turbo Subaru or 450 hp Ecoboost [Re: Navi] #5209744 09/11/19 01:16 AM
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In US, you'll never know when the stop & go traffic will clear and you can then speed up to 40 mph. That's why you need a thicker oil just in case!

Re: Amsoil 5W30 Signature Series too thin for Turbo Subaru or 450 hp Ecoboost [Re: Navi] #5209753 09/11/19 02:02 AM
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Navi Offline OP
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If I did run Amsoil it would be something thicker like their 0W-40. In studying various UOAs of 0W40 oils there seems to.be a bit more iron wear especially with Mobil 1 0W40 FS.

If Amsoil started out thicker like Redline I would be onboard here.

Re: Amsoil 5W30 Signature Series too thin for Turbo Subaru or 450 hp Ecoboost [Re: Navi] #5209786 09/11/19 04:41 AM
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The second UOA showing a 5.4 V8. 18 Navigator should be 3.5 Eco HO right? Same as the Raptor engine?


2015 F150 Lariat M1 5-30 EP FRAM Ultra(44k)
2017 Sub OB M1 5-30 EP FRAM Ultra(74k)


Re: Amsoil 5W30 Signature Series too thin for Turbo Subaru or 450 hp Ecoboost [Re: Navi] #5209788 09/11/19 04:44 AM
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With that engine would it not matter most what the OCI is? Wrong to believe non issue with a 5k OCI but a waste indeed?

Longer OCI might not be the best for those chains long term.


2015 F150 Lariat M1 5-30 EP FRAM Ultra(44k)
2017 Sub OB M1 5-30 EP FRAM Ultra(74k)


Re: Amsoil 5W30 Signature Series too thin for Turbo Subaru or 450 hp Ecoboost [Re: Navi] #5209803 09/11/19 05:15 AM
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Originally Posted by Navi
Why are there all these guys out there with modified (Subaru) turbo engines using Shell Rotella T6 5W40?


They're simply trying to compensate for a problem on an engine known to be extremely hard on crank and rod bearings when the boost is turned up. Stock EJ255/257s have no problem going a couple hundred K miles on 5W30; it seems the issue is once these engines go past 400WHP. I'm sure tuning plays a big part as well. It's not a 5W30 problem, it's a "running the engine well outside its designed & intended capabilities" problem.


De omnibus dubitandum.
Re: Amsoil 5W30 Signature Series too thin for Turbo Subaru or 450 hp Ecoboost [Re: Jimmy_Russells] #5209864 09/11/19 06:32 AM
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Originally Posted by Jimmy_Russells
Originally Posted by Navi
If there is absolutely zero issues with 5W30 then how come in Europe we see 5W40 and 0W40? If I go on the Mobil 1 website and start plugging in various model names from Audi and MB how come it tells me to use 5W40?



Because Autobahn. Nobody ever seems to talk about this, but nowhere in North America can you maintain 120 mph for two hours, for example. On the Autobahn, save for having to slow to 80 mph sometimes, you can do that no problem. So they have to recommend oils that will not thin out at 240+ degree oil temps.

Also, In Europe they design and build engines differently than we do here. Engine speeds, ring/liner pressure, ring/big-end clearances
, etc. My '87 BMW was an unusual engine built for fuel economy and MANDATED any oil with an HTHS >3.5. If protection is what you are looking for, your looking in the wrong place. Look for an oil with an HTHS >3.5.

Last edited by ka9mnx; 09/11/19 06:35 AM.

2005 Ranger 3.0 - SuperTech Syn 5w-30/Motorcraft
2000 4Runner 3.4 - SuperTech Syn 5w-30/Toyota
1997 B2500 Van 3.9 - M1 HM 10w-30/Mopar
1993 F150 4.9 - SuperTech Syn 5w-30/Motorcraft
Re: Amsoil 5W30 Signature Series too thin for Turbo Subaru or 450 hp Ecoboost [Re: Navi] #5209879 09/11/19 06:53 AM
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kschachn Offline
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Sorry, but this is a thread full of imagined problems and subsequent solutions based on more imagination.


1994 BMW 530i, 251K
1996 Honda Accord, 280K
1999 Toyota Sienna, 430K
2000 Toyota ECHO, 284K
Re: Amsoil 5W30 Signature Series too thin for Turbo Subaru or 450 hp Ecoboost [Re: kschachn] #5209888 09/11/19 07:05 AM
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Originally Posted by kschachn
Sorry, but this is a thread full of imagined problems and subsequent solutions based on more imagination.


+1


2019 Frontier Pro 4X - RGT 5w30
2019 Impreza Sport - OE fill
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