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What oil grade for s280

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united Kingdom
#1
Hey guys
People over here are running either a 5w20 5w30 5w40 or 0w40
Trying to figure out the right oil grade
Messaged turbo technics with no response
Useless service after spending 1280.00 pound
 


Dpro

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#3
I am using 5w-30. There is a mechanical engineer and engine builder on the internet that literally has tested a bunch of different oils and states 5w-30 is the perfect weight engine oil for high performance builds or stock. He also in the last year tested all the major oils and the Two that came out on top stress test wise were Quaker State full synthetic and Amsoil . He tested Motul, Lubri.Moly , Mobil One plus all the other usual suspects.
He also tested Oil Filters and Fords came out on top. So ya Ford F400 ( larger than stock and fits) Quaker State Full Synthetic 5w-30 for me.
Oh and ya I am S280 powered!
 


FiestaSTdude

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#4
I am using 5w-30. There is a mechanical engineer and engine builder on the internet that literally has tested a bunch of different oils and states 5w-30 is the perfect weight engine oil for high performance builds or stock. He also in the last year tested all the major oils and the Two that came out on top stress test wise were Quaker State full synthetic and Amsoil . He tested Motul, Lubri.Moly , Mobil One plus all the other usual suspects.
He also tested Oil Filters and Fords came out on top. So ya Ford F400 ( larger than stock and fits) Quaker State Full Synthetic 5w-30 for me.
Oh and ya I am S280 powered!
Is 5w-30 better even with a stock turbo?
 


Dpro

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#5
Is 5w-30 better even with a stock turbo?
Yes like what was written above Ford U.S.A. selected 5w-20 only to meet Cafe standards. aka strictly for fuel economy standards. It’s technically on the thin side of viscosity for proper protection if you push the engine hard. Adversely one can also go too thick viscosity wise which can cause wear on an engine as well. Back in the day people use to add higher viscosity oil to older engines thinking it was helping out because of wear it didn’t lol.
 


M-Sport fan

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#6
There is also a bunch of actual, measured viscosity range allowed within the SAE's 5W-30 parameters/standards.

I use a 5W-30 in my fully factory stock (not even a tune) car, but, it is one of the 'thinner' ones out there, at a 3.1 HTHS viscosity, whereas some of the 5W-30s have up to a 3.8 HTHSV (like Red Line's).
 




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