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#2645605 - 06/05/12 10:49 AM 5W-20 in a 2013 Mustang GT? Seriously?
kballowe Offline


Registered: 10/26/05
Posts: 1012
Loc: East Central Missouri
2013 Mustang GT
6-speed manual
.373 LS with Brembo's
5.0L V8 420 HP - with 8 quart sump

Car will occasionally be 'driven'
Do not anticipate any track time

Manufacturer recommends 5W-20

Your thoughts?



Edited by kballowe (06/05/12 10:50 AM)

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#2645608 - 06/05/12 10:51 AM Re: 5W-20 in a 2013 Mustang GT? Seriously? [Re: kballowe]
Artem Offline


Registered: 10/30/10
Posts: 4507
Loc: Florida
I guess follow the manufacturer's recommendation and see how she holds up. popcorn

They wouldn't try to screw you, would they? whistle
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2015 Lexus ES300H with all the goodies - Factory Fill

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#2645609 - 06/05/12 10:51 AM Re: 5W-20 in a 2013 Mustang GT? Seriously? [Re: kballowe]
JasonC Offline


Registered: 12/06/06
Posts: 409
Loc: Lynchburg, Va
If you want to maintain your warranty use 5w20.
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#2645611 - 06/05/12 10:52 AM Re: 5W-20 in a 2013 Mustang GT? Seriously? [Re: kballowe]
dave1251 Offline


Registered: 07/15/05
Posts: 7624
Loc: Maricopa, AZ
How would using 5W-20 be bad?
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make the inside of your engine oil cap white.
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#2645616 - 06/05/12 10:56 AM Re: 5W-20 in a 2013 Mustang GT? Seriously? [Re: dave1251]
kballowe Offline


Registered: 10/26/05
Posts: 1012
Loc: East Central Missouri
Originally Posted By: dave1251
How would using 5W-20 be bad?


I dunno. That's why I'm asking. I ran that 5W-20 stuff in a Marquis 4.6L for 278,xxx miles but it was an "interstate" go-to-work daily driver w 5k OCI's on Motorcraft syn blend.

???

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#2645622 - 06/05/12 11:00 AM Re: 5W-20 in a 2013 Mustang GT? Seriously? [Re: kballowe]
ARCOgraphite Offline


Registered: 05/17/09
Posts: 9214
Loc: N.H, U.S.A.
2 gallon sump - any other questions?


Edited by ARCOgraphite (06/05/12 11:00 AM)
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#2645627 - 06/05/12 11:04 AM Re: 5W-20 in a 2013 Mustang GT? Seriously? [Re: kballowe]
dave1251 Offline


Registered: 07/15/05
Posts: 7624
Loc: Maricopa, AZ
8 quarts of oil the last time I checked was still quite of bit of oil for gasoline engine in a car. Also does the 13GT have a oil cooler? If it does that is more reason to use a 5W-20.
_________________________
make the inside of your engine oil cap white.
don't use.

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#2645633 - 06/05/12 11:08 AM Re: 5W-20 in a 2013 Mustang GT? Seriously? [Re: kballowe]
Dakota1820 Offline
formerly chevyboy14


Registered: 04/28/11
Posts: 3894
Loc: missouri usa
Well I can answer the above question^ its because it sounds very thin And makes you thinkwow if I get on this thing will that oil be enough to protect it. I know the technology is better but I have a bad feeling about running anything thinner than a 30 weight. Why? Old habits I guess. But I wouldn't use super thin oil in a car I was going to beat on or a truck that was hauling but that's just me
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#2645637 - 06/05/12 11:11 AM Re: 5W-20 in a 2013 Mustang GT? Seriously? [Re: kballowe]
Roadkingnc Offline


Registered: 07/16/11
Posts: 678
Loc: NC USA
The gt500 specs 5w50 5.4 supercharged

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#2645639 - 06/05/12 11:11 AM Re: 5W-20 in a 2013 Mustang GT? Seriously? [Re: kballowe]
bepperb Offline


Registered: 01/10/08
Posts: 4923
Loc: Milwaukee, WI
Motorcraft 5-20 with the Motorcraft filter all day long.
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#2645643 - 06/05/12 11:14 AM Re: 5W-20 in a 2013 Mustang GT? Seriously? [Re: kballowe]
d00df00d Online   content


Registered: 10/20/05
Posts: 9780
Loc: PA
Originally Posted By: kballowe
2013 Mustang GT
6-speed manual
.373 LS with Brembo's
5.0L V8 420 HP - with 8 quart sump

I salute you.


Originally Posted By: kballowe
Car will occasionally be 'driven'
Do not anticipate any track time

Doesn't sound like you're going to be very hard on it, compared to what it's designed to do. The spec oil should be completely fine.
_________________________
2011 Mazda RX-8 R3
Castrol GTX 5w-20

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#2645644 - 06/05/12 11:17 AM Re: 5W-20 in a 2013 Mustang GT? Seriously? [Re: Dakota1820]
Bladecutter Offline


Registered: 02/21/11
Posts: 1004
Loc: Dacono, CO
Originally Posted By: chevyboy14
I know the technology is better but I have a bad feeling about running anything thinner than a 30 weight. Why? Old habits I guess. But I wouldn't use super thin oil in a car I was going to beat on or a truck that was hauling but that's just me


First off, have you ever owned a vehicle that specified 5W-20 from the factory?

If yes, did you experience an engine failure directly related to the 5W-20 not providing enough protection, when the oil was changed at the manufactures recommended interval?

I'm going to bet the answer to both is no.

I'm going to double down on that bet by saying that this whole forum, the number of oil related failures for an engine that recommended 5W-20, and the owner changed the 5W-20 at the recommended intervals is less than 5.

This is for all different types of engines, and not just the Mustang engine in question.

5W-20 is good oil, for the engines that its recommended for.

BC.
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#2645654 - 06/05/12 11:28 AM Re: 5W-20 in a 2013 Mustang GT? Seriously? [Re: kballowe]
ARCOgraphite Offline


Registered: 05/17/09
Posts: 9214
Loc: N.H, U.S.A.
Sump size and cooler! If the oil temp is under 190F the oil will be as thick as a 30 grade at 210F in your vintage 302. Ford accounted for the 20 with the big sump and cooler. My Mustang Bullitt ran like garbage on 5w30 after my first oil change dumping the 5w20. The Lincoln dealer Derry, NH didnt have any 5w20 at the time - and neither did the local autoparts store. The engin ewas dead silent on the 20. If its noisey on the 20 then you got a bad engine. Now, Asin motors spec'ing 20grade on cars "really" spec for 40 in europe are an issue - even with you sloth like, generally Terrible American driver. Yeah, you smile
_________________________
2014 Nissan Rogue S CVT, OC#2 6627mi-Synpower 5W30+PCX-004 S2000 Filter
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#2645665 - 06/05/12 11:39 AM Re: 5W-20 in a 2013 Mustang GT? Seriously? [Re: kballowe]
jaj Offline


Registered: 08/21/03
Posts: 909
Loc: Vancouver, Canada
Originally Posted By: kballowe
2013 Mustang GT
6-speed manual
.373 LS with Brembo's
5.0L V8 420 HP - with 8 quart sump

Car will occasionally be 'driven'
Do not anticipate any track time

Manufacturer recommends 5W-20

Your thoughts?



The 5w-20 works very well in that engine. Here's an article about the engine design - it was built for 5w-20 from the beginning.

http://www.mustang50magazine.com/techart...ne/viewall.html

There are significant benefits to running lower viscosity oils; just search for Dr Haas on this forum. He routinely runs and recommends the thinnest oil that will maintain adequate oil pressure in his collection of exotic cars.


Edited by jaj (06/05/12 11:39 AM)

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#2645670 - 06/05/12 11:43 AM Re: 5W-20 in a 2013 Mustang GT? Seriously? [Re: kballowe]
JHZR2 Offline



Registered: 12/14/02
Posts: 35763
Loc: New Jersey
Seriously! I would run a good syn like M1 for this though...


Edited by JHZR2 (06/05/12 11:44 AM)

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