What kind of oil?

[nickstobias]

Need a oil change, my car is modded with a Gen2R with all the supporting mods, any Recommendations on what kind of oil? Thanks


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[me32]

What do you run now?

 

[MG0h3]

Manufacturer recommended is just fine.

Still running the original motorcraft 5/20 in my Cobra.

2.9 Whipple/E85 @20 psi for three years or so


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[HKusp]

I ran Castrol full synthetic in mine. 161,777 when I wrecked it. Never burned oil.

 

[SID297]

40w diesel oil.

 

[1 Alibi 2]

5w-50, whatever is on sale, not brand loyal, have used several different brands in the 11 & 14, & not had any issues.
My tuner likes Valvoline..

 

[hotcobra03]

On my 03.
Its been basic castrol gtx,5-20 and 1 bottle stp oil treatment..

Over 400k on motor

I have tried to only use the same oil and filter ,,

 

[xblitzkriegx]

Run the weight that's recommended. If oil temps are getting above about 240 degrees or so, it would be wise to go one extra weight class up. The engine was designed to run right clearances and use thinner oil because of it. More engine load doesn't push oil out of bearings just because oil viscosity is low. As low as bearing clearances are correct, tighter tolerances and thinner oil actually maintains and spread loads better than thicker oil and loose tolerances.

The only reason you see people use heavier oil with tighter clearances is due to the heat of the oil. The closer you get to high temp high shear point, the heavier the weight of oil you'll want to use to maintain proper clearances at elevated temps. Alternatively, you could increase/optimize the oil cooling system.

 

[68gtscode]

I always used Redline 5W50 in my GT500.

 

[Vinnie_B]

I use factory Motorcraft 5W-50 w/ ford racing oil filter on my 2013 Super Snake. No problems. Im contemplating giving Amsoil a try. I use Amsoil in my 2014 CTS V Coupe. Its been good to me as well!

 

[bg302]

I run the Motorcraft 5W/50 and Ford Racing filter....no problems at all.

 

[COOL COBRA]

Wait, so in this day and time we have a new oil thread? Hell yes, I guess.

 

[blue 07]

Amsoil for sure in my 2013 !

 

[me32]

https://www.svtperformance.com/threads/official-uoa-thread-with-oil-poll.787413/