synthetic for hot climates and high RPMs

[FORDMOPAR70]

2011 Mustang GT 5.0 now running 5w50 motorcraft (conoco?). MFG specs, right now, call for 5w20. Would welcome any suggestions on what type of synthetic oil to run for Atlanta area, approx 300 miles/week and acclerate through the gears quickly at higher RPMs.
BTW, are there still any syn. oils derived from fuel any longer or are all just crude-based now?

 

[hounddog]

5w20. Oil temps on my 09 Dodge Hemi 1500 are the same in 60 degree weather as in 100 degree weather.I use Amsoil XL 5w20.Coolant temps are within 1 or 2 degrees in same conditions.

 

[oggb]

If I owned a car like that I'd have a hard time making myself put 5w20 in it. That being said if 5w20 were too thin I would think we'd be hearing about mass engine failures.

I'd like to see a used oil analysis on one of those running 5w20 and seeing use exactly like yours.

 

[Unearthed]

I've been trying to decide if it's ok to run 5w30 in my Accord spec'd for 5w-20 and here people are running 50w with no problems haha.

 

[XCELERATIONRULES]

Running non spec oil in a new car?
Heavy weight oils are a thing of the past.
Use the correct weight synthetic oil,and you should be fine.
If the oil meets the spec you need,use it.
Don't worry about the name on the label.

 

[hate2work]

I would run Red Line 5W-20 in that engine. Group V oil designed with your conditions in mind.

http://www.redlineoil.com/product.aspx?pid=1&pcid=21

 

[demarpaint]

Ford extensively tested that engine with a 20 grade oil. I'd use a 20 grade oil. Edge, PP, PU come to mind, since I prefer synthetic oil.

Ford is responsible for the warranty on the engine I would use what they suggest. I think the Ford engineers know what works best in their engines. 20 grade oils have been around for a while if engines were failing as a result of it we'd hear the screams loud and clear!

Nice ride BTW! Good luck with it.

 

[pbm]

2011 Mustang GT 5.0 now running 5w50 motorcraft (conoco?). MFG specs, right now, call for 5w20.


Are you running 5w50 or 5w30? I don't think 5w30 is a problem but I wouldn't use 5w50 in a new car.

 

[d00df00d]

Originally Posted By: FORDMOPAR70
2011 Mustang GT 5.0 now running 5w50 motorcraft (conoco?). MFG specs, right now, call for 5w20.

That's a BIG jump in viscosity. I wouldn't recommend it, even under hard use in a warm climate. A good synthetic 5w-20 or 0w-20 should be all you need.

Remember that when it comes to viscosity, the big number is what really counts, and 50 is WAY higher than 20.

Do you want something off-the-shelf, or are you willing to order it? How concerned are you with keeping your warranty? How frequently do you plan to change it?


Originally Posted By: FORDMOPAR70
BTW, are there still any syn. oils derived from fuel any longer or are all just crude-based now?

Most synthetics are a mix of ingredients derived from all sorts of sources. Modern technology can make a synthetic out of just about anything. Rest assured that if they're labeled synthetic, that's what they are.

 

[SteveSRT8]

Indeed, or a lawyer somewhere would spank them good!

I can't see the need for such a heavy oil. Check the temps, I bet they're LOWER with the thin stuff.

Why give them a way out from under the warranty?

 

[EricZoom]

I use Mobil 1 0w20 in my Mazda6 Duratec variant with good results in the FL heat.
I would also stick with the Mfg. recommended 20 wt. oils at least for the warranty period.

 

[SrDriver]

We live a few miles from the Florida line and experience hot summer months.

Last 4 vehicles have called for 5W20 and we use 5W20 synthetic. Nothing has blown up yet.

City and country police are driving Fords and running bulk 5W20 oil and the vehicles see a lot of abuse. No engine problems that I have ever heard of.

 

[StevieC]

I'm using 5w20 synthetic in my Santa Fe at the moment with over 300K KM's (180K Miles) on the clock. We are currently experiencing 35 degree heat here (95F) and truck is holding up just fine even with my lead foot, A/C running for 8-10 hours a day and the odd red-line because I'm passing some idiot on the highway.

 

[daman]

If ford specs a 5w20 for the car you can be assured it'll work it's been tested and approved so no worries,5w20 synthetic is a well built oil low to no VII so it holds grade well.

and yes yes a full synthetic for sure and any OTC oil would get the job done, Pennzoil Platinum / Pennzoil Ultra,M1, etc...

 

[FORDMOPAR70]

Okay, I am about to throw a wrench in the works. I was told by Detroit to put 5w50 into a coyote motor that came in for a concern and to continue running it. So now what. Cap says one thing Detroit another. ??

 

[HangerHarley]

Originally Posted By: FORDMOPAR70
2011 Mustang GT 5.0 now running 5w50 motorcraft (conoco?). MFG specs, right now, call for 5w20. Would welcome any suggestions on what type of synthetic oil to run for Atlanta area, approx 300 miles/week and acclerate through the gears quickly at higher RPMs.
BTW, are there still any syn. oils derived from fuel any longer or are all just crude-based now?


What Brand of 5W-50 and Type? Did you use?

If Ford FFd it with 5W-20 id leave it.

Some cars do have FF of 5W-50 but going from "20" KV to "50" KV (Kinematic Viscosity, i figured out SAE) Seems...

.. Unnecessary, will Void that new Pony's warranty, and does not seem like a good match. Not for that app. Nuh-uh. MAYBE if Carroll Shelby or Steve Saleen did it, but Motorcraft put 5W-20 in there so they knew that they did and they wanted to.

What is the Oil pressure showing? Going from "20" to "50," im sure its way high. I wonder what that engine will do with that.

I would have left the "20" Oil it came with from the people that made it in if it was a new car, and definitely if it was my car.

 

[daman]

Confused,Detroit?

and whats a coyote motor? higher performing mod engine?

 

[FORDMOPAR70]

Coyote is the new 5.0 motor. Detroit = engineers.

 

[demarpaint]

Originally Posted By: FORDMOPAR70
Okay, I am about to throw a wrench in the works. I was told by Detroit to put 5w50 into a coyote motor that came in for a concern and to continue running it. So now what. Cap says one thing Detroit another. ??


Get it in writing if it applies to your application, then if you should huff the engine because of the oil you'll have a legal leg to stand on. If you can't get it in writing stick to the OM recommended oil.

 

[StevieC]

Originally Posted By: demarpaint


Get it in writing if it applies to your application, then if you should huff the engine because of the oil you'll have a legal leg to stand on. If you can't get it in writing stick to the OM recommended oil.


+1

Sound advice...