0W20 Synthetic Oil Comparision - Subaru Forester Owners Forum
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post #1 of 46 (permalink) Old 08-09-2014, 04:08 AM Thread Starter
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0W20 Synthetic Oil Comparision

Just wondering what you guys think about the various brands of 0w20 synthetic oil that we can choose to use in our Non-Turbo Engine. I will be approaching my second Dealer oil/ oil filter change on or before November. My Dealer uses the Subaru Branded 0w20 Synthetic, which seems to be decent oil. Just wondering what other Brands have other Non-Turbo owners used and if they are happy with their choice. I have read where some Subaru Dealers do not use the Subaru Branded Oil but use another brand in their Service Dept.

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post #2 of 46 (permalink) Old 08-09-2014, 04:50 AM
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My personal opinion:

Never any 0W-20 oil, if it's possible to use another by Subaru approved oil without losing the Subaru warranty.

By my internet search about 0W-20 I found, that except of Ford no European car manufacturer recommends the use of 0W-20 in Europe.

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post #3 of 46 (permalink) Old 08-09-2014, 08:31 AM
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They are all probably about the same. All Group III syns. I would use the Subaru stuff bc I have the Subaru bucks..so its free. I use the Subaru 5W-30 for my 08

Be careful what you wish for.
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post #4 of 46 (permalink) Old 08-09-2014, 08:41 AM Thread Starter
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I will use the Subaru 0w20 Synthetic as long as I have my Forester, the oil and oil filter changes are free for the life of my vehicle from the Subaru Dealer I purchased my Forester from.
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post #5 of 46 (permalink) Old 08-09-2014, 09:19 AM
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One more approval of 0W-20 oil for European cars:

BMW has approved now the new Titan GT1 EVO SAE 0W-20 for their new turbo straight-four engine N20; the oil is approved for the new BMW specification Longlife-14 FE+.

Look here (of course in German): http://www.fuchs-europe.de/fileadmin..._SAE_OW-20.pdf

The oil is available since February 2014.

Of course I don't know, if it's available only in Germany or worldwide as well.

It was the only exception concerning European car manufactures besides the N/A 2.0 Forester and Ford, which I found by an internet search.
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post #6 of 46 (permalink) Old 08-10-2014, 03:14 AM Thread Starter
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If I did my own oil and oil filter changes, I would go with the Kendall 0w20 Synthetic. It looks like it is L/T $6.00 per quart at some of the auto parts stores. Looks like a decent oil for the money.
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post #7 of 46 (permalink) Old 08-10-2014, 03:54 AM
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Question Only 0W-20 allowed?

Is it for you in the USA allowed by SOA to use only 0W-20 oil?

Or can you use also thicker oil without losing the warranty?

If thicker oil is allowed as well, you should use for being on the safest side such thicker oil because of the non-approvals of most European manufactures concering 0W-20.
They have certainly their reasons for such non-approvals.
Of course that's only my personal opinion and recommendation.
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post #8 of 46 (permalink) Old 08-10-2014, 04:01 AM
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Quote:
Originally Posted by GMork View Post
Is it for you in the USA allowed by SOA to use only 0W-20 oil?

Or can you use also thicker oil without losing the warranty?
According to the Owners Manual, 0w-20 is required but something like 0w-30 could be used only if 0w-20 is not available and you need oil.

Since he is using the free service at the dealership, they will require it be 0w-20 oil since they have to have it in stock.

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post #9 of 46 (permalink) Old 08-10-2014, 04:03 AM Thread Starter
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The owner's manual indicates you can use 5w30 if nothing else is available, but the oil should be changed asap. The 0w20 Synthetic is what is recommended/ required by Subaru. I keep a few quarts of the Subaru 0w20 Synthetic oil in the lower cargo storage area just in case I would need it. I want to ensure the correct oil is always used.
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post #10 of 46 (permalink) Old 08-10-2014, 04:17 AM
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Quote:
Originally Posted by GMork View Post
Is it for you in the USA allowed by SOA to use only 0W-20 oil?

Or can you use also thicker oil without losing the warranty?
Here's the guidance from pages 11-13 and 12-6 in my 2012 Forester's owner's manual:

Quote:
NOTE
Synthetic oil of the grade and viscosity
noted in chapter 12 is the recommended
engine oil for optimum engine
performance. Conventional oil may be
used if synthetic oil is unavailable.
Quote:
0W-20 synthetic oil is the required oil
for optimum engine performance and
protection. Conventional oil may be
used if synthetic oil is unavailable.
My interpretation is that 0W-20 oil is required for "optimum performance". However, I don't interpret these statements to mean that 0W-20 oil is required "period", or that 0W-20 oil is the only grade permitted.

My OM also includes the following statements:

Quote:
NOTE
Engine oil viscosity (thickness) affects
fuel economy. Oils of lower viscosity
provide better fuel economy. However,
in hot weather, oil of higher viscosity is
required to properly lubricate the engine.
Quote:
Synthetic oil
You should use synthetic engine oil that
meets the same requirements given for
conventional engine oil. When using
synthetic oil, you must use oil of the same
classification, viscosity and grade shown
in this Owner’s Manual. Refer to “Engine
oil” F12-5. Also, you must follow the oil
and filter changing intervals shown in the
Warranty and Maintenance booklet.
I've been using "synthetic" 0W-30 with good results.

HTH,
Jim / crewzer


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post #11 of 46 (permalink) Old 08-10-2014, 04:29 AM
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Lol..these notes are the ultimate in "doublespeak"
Especially this one:

Quote:
NOTE
Engine oil viscosity (thickness) affects
fuel economy. Oils of lower viscosity
provide better fuel economy. However,
in hot weather, oil of higher viscosity is
required to properly lubricate the engine.

Be careful what you wish for.
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post #12 of 46 (permalink) Old 08-10-2014, 04:31 AM Thread Starter
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I have always used the oil that is required for that vehicle. Don't want any warranty issues, plus with the free oil and filter changes through the Dealer, I'm covered.
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post #13 of 46 (permalink) Old 08-10-2014, 05:05 AM
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Wally World has a surprising variety of oils available. Sometimes all stores don't carry all varieties, you may have to shop around to find your preference. Most is available in handy 5 qt containers for around $25.

FWIW, I've decided to use Pennzoil after reading an exhaustive 'oil wars' thread.
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post #14 of 46 (permalink) Old 08-10-2014, 05:19 AM Thread Starter
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Your right, you can usually save some money buy buying the 5 quart jugs if available in your brand.
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post #15 of 46 (permalink) Old 08-10-2014, 12:13 PM
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As I already have written in a previous reply, Subarus requirements for the oil aren't as rigid in Europe as they are in the USA.

But I only could name Subarus oil requirements in Europe for my N/A 2.0 Forester 2010 and for the N/A 2.5 Forester of the same period.

I don't have informations about the oil requirements for the Forester 2014 or 2015 in Europe.

I will post a request in a German Subaru forum about that matter.
Then we can see, if there are also differences for the Forester 2014 and 2015 between Europe and the USA.
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