Thread: 5w-40 or 5w-30?
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      Today, 11:09 AM   #12
Ahmad Albarazi
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United Kingdom
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Drives: BMW E93 335i
Join Date: Nov 2022
Location: UK, Northern ireland

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Quote:
Originally Posted by lookalikehuuh View Post
I just get the Mobil 1 0w40 FS European car formula since its easy to source from Walmart here and the Mann filter every time. I live in southern california and it NEVER gets below 45F here, therefore I don't really need a 0 weight oil, but I do like that in theory it should flow slightly better when cold. In reality it probably doesn't make that big of a difference depending on your weather.

Like others have said, just go with a good quality oil that is 5w30, 0w40, or 5w40 and don't worry too much about it.

Some brands that make an appearence here on the regular are(in no particular oil):

Mobil 1
Motul
Genuine BMW
Castrol euro
Liqui Moly
Ravenol
Pennzoil Platinum

Any of those should protect your engine just fine. I actually had to send my wife to the store to pickup oil for me once... she got the Valvoline Euro 5w40 formula... guess what, engine was still fine

I think the most important thing here is to not beat on your engine until it comes up to temp. I personally don't really get on it until engine oil temps are above 180F.
I will get the Mobil 1 FS 0w-40 in thay case thanks
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