Oil change recommendation

[Airport]

Getting ready to do the first oil change on a 2021 5.0 GT. I have 10 quarts of Motorcraft 5w-20 full synthetic. Ford recommends 5W-30 synthetic blend. The car is never driven in cold weather.
If I go with the 5W-20 full synthetic I will stay with full synthetic. Any thoughts?

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[jacknifetoaswan]

I've been running 5W-20 full synthetic for the full life of my 2016 GT, either Amsoil Signature or Royal Purple. When I pulled my valve covers a couple weeks ago, someone noticed irregular wear on a couple cam lobes. I sent an oil sample away for a OUA but haven't received the response yet.

I switched to 5W-30 Royal Purple, as it's pretty hot during the summer in Charleston.

I'd always go full synthetic over synthetic blend, but that's just me.

JR

 

[Cux211]

If it’s never in cold weather why go with a thinner oil, I wouldn’t I’d stay with 5-30 full synthetic if you have a boosted and or high performance engine then go even thicker like 5-40 or 5-50

 

[Skye]

Ford recommends 5W-30 synthetic blend.

For most climates, you reference Ford's recommendation.

For climates colder than -20F / -30C, Ford advises to use 0W-30.

I understand you're at the ready with 5W-20, but that deviates from spec. Unless you have mods or are pursuing a special application, I would stick with what Ford says (5W-30).

Regarding the brand and type (Full Syn versus Syn Blend), that's up to you. Whatever you decide, I think it's best to be consistent and use the same weight, brand and type for as long as you maintain the vehicle.

 

[BluePonyGT]

Mobile 1 full synthetic 5w-20, and an FL-500S Motorcraft filter for the GT for the 2017 since the first day.

 

[GregO]

Getting ready to do the first oil change on a 2021 5.0 GT. I have 10 quarts of Motorcraft 5w-20 full synthetic. Ford recommends 5W-30

You have a GDI motor so fuel oil dilution is a real thing.
5W-30
5W-40
Or I prefer 0W-40 and not because of cold climate conditions.

 

[Aks550]

Getting ready to do the first oil change on a 2021 5.0 GT. I have 10 quarts of Motorcraft 5w-20 full synthetic. Ford recommends 5W-30 synthetic blend. The car is never driven in cold weather.
If I go with the 5W-20 full synthetic I will stay with full synthetic. Any thoughts?

Why u want to go with lighter economy oil for performance engine. U might as well buy a Corolla if u want 5w20!

 

[Aks550]

Mobile 1 full synthetic 5w-20, and an FL-500S Motorcraft filter for the GT for the 2017 since the first day.

Wait for your timing chain slapping u will know u are crapped out with light oil!

 

[Cory S]

Why u want to go with lighter economy oil for performance engine. U might as well buy a Corolla if u want 5w20!

I use 0W-20 in my Corolla year round. .

 

[Airport]

Thanks to all those who replied. It seems that the consensus is to go with the 5W-30, which I will do.

 

[tdstuart]

Wait for your timing chain slapping u will know u are crapped out with light oil!

5w-20 is what Ford states to use on the 2017 gt.

I would still do 5w-30 at least and go with 5w-40 or 5w-50 if boosted.

 

[tdstuart]

Thanks to all those who replied. It seems that the consensus is to go with the 5W-30, which I will do.

You can do 5w-20, it won't change anything.

I would recommend you do 5w-30 for future oil changes though, especially if you drive the car hard. I would also get the upgraded Ford Racing oil filter (bigger filter, better flow).

If you boost the car go with 5w-50.

 

[Aks550]

5w-20 is what Ford states to use on the 2017 gt.

I would still do 5w-30 at least and go with 5w-40 or 5w-50 if boosted.

Then you should do your own research better! I don't like to explain stupid, Google is your friend

 

[tdstuart]

Then you should do your own research better! I don't like to explain stupid, Google is your friend

I have a 2015 mustang gt. The recommended oil per ford is 5w-20...

Ford engineers have stated that they originally were going with 5w-30 but changed to 5w-20 for emissions. You can use either the car will be fine.

I don't like to explain stupid, Google is your friend

 

[Airport]

You can do 5w-20, it won't change anything.

I would recommend you do 5w-30 for future oil changes though, especially if you drive the car hard. I would also get the upgraded Ford Racing oil filter (bigger filter, better flow).

If you boost the car go with 5w-50.

I have the upgraded Ford oil filter. The 05w-20 Motorcraft oil was sitting on the shelf. Just wanted some opinions on whether or not it should be used. I do know that Ford has changed their recommendation since 2019.

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