Is Motorcraft still the choice for oil change?


alpha6164

GT Owner
Dec 29, 2016
3
Just picked up my stripe delete red 05 FGT and super excited. It is getting a pulley and tune by Torri along with catless exhaust. Will be doing a complete fluid change and i have read so much about the Motorcraft 5w-50 and all the changes and that it breaks down after a 1000 miles that i am more confused than when i started lol.

I am in Florida and so definitely want protection for the hotter climates. I see several have posted about the Rotella T6 but concerns me that it is a 5w-40. Otherwise I love Rotella as a general rule. Does anyone use the Mobile 1 5w-50, Amsoil 5w-50 or Redline 5w-50? Am i missing any other good options?





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Last edited:

twobjshelbys

GT Owner
Jul 26, 2010
6,053
Las Vegas, NV
 

Ed Sims

GT Owner
Mark IV Lifetime
Apr 7, 2006
7,850
NorCal
I use Motorcraft!

Ed
 

AJB

GT
Mark II Lifetime
Le Mans 2010 Supporter
Jun 28, 2006
2,943
Bloomfield Hills, Michigan
100 % Motorcraft since 2006
andy(ajb)
 

Xcentric

GT Owner
Mark II Lifetime
Jul 9, 2012
5,213
Myakka City, Florida
Extensive threads on this topic.

Another alternative to Motorcraft is Rotella T6 5W-40. Former forumite jcthorne claimed that the Motorcraft 5W-50 lost its rated viscosity pretty fast, the Rotella has greater shear strength, yadda yadda. He had his oil analyzed regularly. I think he claimed that today's Motorcraft is not the same as the original. Do a search.

The Rotella, being formulated for diesels, has more zinc. Which is better for the engine, but maybe not so much for catalytic converters. I read that on the Internet...must be true.
 

Tomcat

GT Owner
Motorcraft...per GTGuys
 

junior

GT Owner
Mar 9, 2007
1,151
So Cal
Motorcraft per factory recommendation.
 

Beach-GT

GT Owner
Mark II Lifetime
May 8, 2006
887
Seminole Florida
I use the Ford Motorcraft oil and put the zinc back in it with ZDDP Max you can buy on Amazon. Use one bottle in 4 quarts of SM oil and you have the original Motorcraft GT oil Walla!
 

ByeEnzo

GT
Mark IV Lifetime
Le Mans 2010 Supporter
Dec 10, 2005
2,283
Fort Worth, TX
Rotella here!
 

Sinovac

GT Owner
Mark II Lifetime
Jul 18, 2006
5,832
Largo, Florida
I've used Rotella T6 in 5 modular motors for years without a problem in Florida. I use it in everything I own except a Harley.
 

w.a.nelson

GT Owner
Mark II Lifetime
Feb 29, 2008
1,096
Asbury, NJ and Bourne, MA
I am not sure there is any compelling reason to not use Motorcraft. I have used it exclusively since '06, and will continue to do so.

No one has commented on your new ride and membership.

Welcome, and good luck with your sweet ride. Looks like a real beauty.

No stripes means more red for Dr. Frank.
 

Tomcat

GT Owner
I think the red no stripes looks GREAT!
I have a red Pantera with "no stripes".
 

MNJason

GT Owner
May 14, 2010
2,096
San Diego
Nice looking car!

T6 user here.
 

alpha6164

GT Owner
Dec 29, 2016
3
Thanks guys. I specifically was looking for a red with all options minus the stripe and found it and it only has 4800 miles. She looks just like off the showroom floor. I am super excited. My first american super car. I currently have a Bentley CGT, Diablo 6.0 and Murci LP640 so it is a great addition. I am stoked.





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Nafod

GT Owner
Mark IV Lifetime
Switched to T6 for the GT.
Mobil 1 5-50 for the Boss LS because I change it a lot and Napa has it for sale in the summer at under 6 a quart.
The Motorcraft with zinc additive would be appealing.
 

Fordcarsforfun

GT Owner
Apr 13, 2016
72
Redline awesome stay away from ams

Sent from my SM-G928V using Tapatalk
 

Fordcarsforfun

GT Owner
Apr 13, 2016
72
BTW FANTASTIC LOOKING CAR!

Sent from my SM-G928V using Tapatalk
 

MTV8

GT Owner
Mark II Lifetime
Jul 24, 2010
1,017
Houston Texas
I sent a sample of Motorcraft to Blackstone for analysis, but they do not keep a GT specific comparison set which makes it difficult to determine whether a different oil would be better.
 

Beez

GT Owner
Mark II Lifetime
Oct 28, 2016
195
South Denver
Alpha - The Red really Pops in the bright sun - gorgeous!

Nice running in to you on two forums

- Beezupra
 

STORMCAT

GT
Mark IV Lifetime
Le Mans 2010 Supporter
May 25, 2006
7,549
Ft. Lauderdale
Congrats and welcome ! , Ford Motorcraft for 10 year !!