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Old 08-24-2012, 07:41 PM   #41
Slowbra302
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Soooo my cap says 5w-50 as well (2013 track pack)... It is my daily driver and I drive it pretty hard but would like to know which would offer most protection?
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Old 08-24-2012, 08:47 PM   #42
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Quote:
Originally Posted by Slowbra302 View Post
Soooo my cap says 5w-50 as well (2013 track pack)... It is my daily driver and I drive it pretty hard but would like to know which would offer most protection?
I would say 5w20 if you daily drive it relatively normally and want the oil to get thin enough to properly lubricate relatively quickly after starting and in the winter, 5w50 if you plan on extended high rpm conditions like on road courses and high engine temps.

id do 5w20 going into the winter, and probably all year around unless i lived in las vegas or somewhere ridiculously hot or wanted to track my car on a road course


EDIT

found this on another forum so mabe im mistaken :


Quote:
I love that dealer mechanics are now the subject matter experts on this and not the engineering team who designed and built the thing......

Anyway stop spreading mis-information. You should NOT change the oil viscosity from what your car was factory equip'ed with.

The engine calibration is viscosity specific and there are implications to changing it.
The Boss 302 calibration for TiVCT had to be tweaked to accommodate the 5w-50 oil.

You should not deviate from factory oil viscosity specifications period
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Old 08-25-2012, 10:53 AM   #43
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I like that post you quoted. I just take my time and wait for her to properly warm up before mashing on the throttle
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Old 08-25-2012, 05:56 PM   #44
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Originally Posted by Slowbra302 View Post
Soooo my cap says 5w-50 as well (2013 track pack)... It is my daily driver and I drive it pretty hard but would like to know which would offer most protection?
5w40!
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Old 08-25-2012, 06:30 PM   #45
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5w40!
Lol. 5w40.... Good joke!!
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Old 08-25-2012, 06:37 PM   #46
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Lol. 5w40.... Good joke!!
I wasn't joking. Lots of gt500's running that weight. 5w50 is probably only necessary for the track. 5w40 is going to shear down to a 30 weight pretty quickly unless you run one of the fancy oils. I think 5w30 is minimum for these cars, unless you drive like my mother.
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Old 08-25-2012, 06:51 PM   #47
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Quote:
I love that dealer mechanics are now the subject matter experts on this and not the engineering team who designed and built the thing......

Anyway stop spreading mis-information. You should NOT change the oil viscosity from what your car was factory equip'ed with.

The engine calibration is viscosity specific and there are implications to changing it.
The Boss 302 calibration for TiVCT had to be tweaked to accommodate the 5w-50 oil.

You should not deviate from factory oil viscosity specifications period
I'd love to know where this person got his information. Not saying it's misinformation, but it might as well be without a direct quote from a ford tuning technician.
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whipple HO SC,FRPP k springs, Pypes mid mufflers, hurst, frpp TB, 4.10's, spohn lca's, adj. UCA, relo brackets, 1 piece DS, spec stg 3+ clutch. 12.52@117.6mph so far with a 2.01 60 ft time

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Old 09-02-2012, 01:22 PM   #48
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Has anyone contacted a reputable Ford Mechanic or Engineer on this topic? I would like to know what oil came in my 2013 GT with Track Package from the factory.
It seems like there are many opinions on this thread but I would just like to know what oil came in the car out of the factory.
As everyone else has stated my manual says 5w-20 and the cap says 5w-50.

Click the image to open in full size.
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Old 09-02-2012, 05:16 PM   #49
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Originally Posted by rwebb View Post
Has anyone contacted a reputable Ford Mechanic or Engineer on this topic? I would like to know what oil came in my 2013 GT with Track Package from the factory.
It seems like there are many opinions on this thread but I would just like to know what oil came in the car out of the factory.
As everyone else has stated my manual says 5w-20 and the cap says 5w-50.

Click the image to open in full size.
If you really want to know, then take a sample and send it to blackstone labs. For about $30 you'll know exactly what viscosity. You're not going to get a straight anser from anyone that works for Ford.

The owners manual is the same for all gt. There was a notice in the manual from ford included for the track pack cars.
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Old 09-05-2012, 07:27 PM   #50
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My cap and Manual say 5w20
GT/ premium / stick / no track pack
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Old 09-05-2012, 07:27 PM
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