57 replies to this topic

[2013Shelby]

Question:

Have 2013 w/ no track pack.  Just oil to water standard cooler.

Drained oil, changed filter, then added 8.5 quarts of oil as indicated in manual.  Did not drain oil from cooler - just removed drain plug on pan.

Oil appears a quart high now?

Is there another place that you are supposed to drain the oil from the cooler?  Or does a quart of old oil stay in the system between changes?

Likely did something dumb.  What did I miss?

Thanks

[Snoopy49]

2013 FORD SHELBY GT500 TECHNICAL SPECIFICATIONS

Oil capacity 8.5 quarts base, 9.5 quarts Track Pack, 5W-50 full synthetic

Edited by Snoopy49, 03 September 2012 - 07:14 PM.

[2013Shelby]

Just rechecked manual - indicates 8.5 quarts for both w/ or w/o Track Pack.  I have also seen some materials stating capacity at 9.5 quarts w/ track pack.  I think there is some confusion in the specifications.

[Iceman5000]

I changed mine. No Track Pack.  Exactly 8.5 Qts was perfect.

[Squirrel 007]

Yes, I read that with track pack it is supposed to be 9.5 quarts. The GT500 suplement for the owners manual I downloaded to read while I await delivery says 8.5 quarts with or without track pack. Makes no sense. My car is supposed to be built week of October 1. I won't see it for 1-1/2 years. It will just sit in my garage. The dealer is delivering it to my house. I also, like another member here, am working in Afghanistan as a government contractor. I do not go home for R&R (Thailand calls to me) and I will have to wait till I go back to the USA in 2014. So my car will just sit until that time keeping my 2002 Saleen Extreme and 2003 James Bond T-Bird company. I sure do miss driving those cars. Only excitement around here is dodging rockets and AK-47 fire. I was in a shipping connex that they started shooting all up and let me tell you when those bullets start hitting you ask yourself what the heck am I here for when I could be home having fun. At least I have some nice cars to dream about to make things better. Only 18 more months.......

[440sprint]

I solved this with SVT recently. The track pack's oil cooler & lines hold & keeps 1 used qt that does not drain when draining the pan, so an oil refill takes 8.5 qts with or w/o the track pack.

No problem w/o the track pack, but 10%+ used oil stays in track pack equipped GT500's. I wish there was some way to change all 9.5 qts w/TP!

[Snoopy49]

Bump

Edited by Snoopy49, 04 September 2012 - 02:01 PM.

[2013Shelby]

Thank you for the inputs.  I also checked the oil this morning with the engine completely cold....right on the mark.  

Possible explanation - After the oil change, I checked for leaks, took it for a drive, then checked oil after a few minutes when the engine was hot....that is when I had the oil at the "overfill marks" on the dip stick.  This morning, the oil was right at the upper hole.

Believe this is just the oil expansion causing the issue false reading.

*********

Density Cold / Density Hot = Volume Hot / Volume Cold..., so for the oil from 20 deg. C to 100 deg. C the ration of the cold / hot densities is ~1.06.  

Conclusion: for 8.5 Quarts of oil you could expect up to a 1/2 quart expansion.  

********

Never had a car before with enough oil that this could really be observed.  

[440sprint]

6% expansion is way more that I would have estimated. With the track pack's 9.5 qts, that is nearly 6/10 qt added volume due to expansion when changing the oil temp from 20*C to 100*C!

This must be one reason never to overfill when changing or adding engine oil.

Does anyone have any info on what the range of temps that the engine oil experiences under different driving conditions & how much lower these temps are with the track pack?

[Husky44]

Bumping this...  Just started to do my oil change tonight.  Never had a supercharged car before, so not sure if this creates an additional place you have to drain oil besides the pan?

I'm stumped as to why the plastic panel under the front of the car says "Remove for Oil Service"?  I assumed that's where I'd find the filter, but no, it's further back.  Can't find anything that looks like a drain plug under there.

Am I missing something, or is the only place I drain oil during an oil change at the pan?

[Norton]

You're not missing anything, Husky44.  I did my first oil change a couple of weeks ago.  I found only one drain plug, on the oil pan.  I let the (hot) oil drain as "completely" as possible while replacing the filter.  Refilling took exactly 8.5qts.  As 440sprint reported above the Track Pack's extra quart remained "trapped" in the cooler & lines.  I got NO overfill indication, but didn't check the level until I'd run the engine a few minutes, permitting (about a quart of) oil to make its way into the new filter.  FWIW, I've yet to observe volumetric "expansion" of the oil in any of my vehicles, including the Shelby, regardless of engine temp.

This is only my second supercharged vehicle, but if it's anything like the other one, there IS supercharger oil to be changed, but it is totally separate from the engine oil.  I haven't looked for it on the Shelby yet but, on my other vehicle, there's a plug on the nose drive through which the oil is extracted and replaced.  Change interval for that vehicle's supercharger oil, depending on who you believe, varies between 30K and 100K miles.  (Nothing like clear guidance...)

Edited by Norton, 08 December 2012 - 09:59 PM.

[Snoopy49]

Is it possible to fill the oil filter before installation?

[mullens]

Snoopy49, on 08 December 2012 - 09:56 PM, said:

Is it possible to fill the oil filter before installation?

Why would you want to do that?

[Snoopy49]

Why wait for the engine to fill it?

[Husky44]

Snoopy49, on 08 December 2012 - 09:56 PM, said:

Is it possible to fill the oil filter before installation?

Not really.  You can put some oil in, but you're not "filling" it.  You're not hurting anything by putting the 8.5 quarts into the crankcase.  The filter will fill rather quickly, and  you're not going to lose any oil flow for the engine.

[Husky44]

Thanks for the confirmation, Norton!  So I wonder why they stamped that into the plastic?

[Snoopy49]

Husky44, on 08 December 2012 - 11:42 PM, said:

Not really.  You can put some oil in, but you're not "filling" it.  You're not hurting anything by putting the 8.5 quarts into the crankcase.  The filter will fill rather quickly, and  you're not going to lose any oil flow for the engine.

If the engine has to fill the oil filter before the engine sees any oil, wouldn't it be better to prevent this from happening by prefilling the filter? I would rather not take a chance.

[Norton]

Husky44, on 08 December 2012 - 11:43 PM, said:

Thanks for the confirmation, Norton!  So I wonder why they stamped that into the plastic?

You're welcome!

I admit I didn't pay any attention to "Remove for Oil Service" verbiage when I was under the car, or I'd have probably suffered the same confusion you did.  According to this thread in the SVT Performance forums, the plastic panel is shared among multiple Mustang variants and the 5.0 engine requires removal to access the oil filter.

Edited by Norton, 09 December 2012 - 12:01 AM.

[Snoopy49]

Husky44, on 08 December 2012 - 11:43 PM, said:

Thanks for the confirmation, Norton!  So I wonder why they stamped that into the plastic?

Is the filter located in a different position on an SVT TP equipped car?

[Norton]

Snoopy49, on 09 December 2012 - 12:01 AM, said:

Is the filter located in a different position on an SVT TP equipped car?

No.