Valvoline 0w30 Euro Oil

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At what point is HTHS too high?
BMW, for the huge majority of its engines (except those that use 10W60), has a max HTHS of 4.1cP. Would higher hurt? No! But, you are creating more resistance, depriving the vehicle of performance for no good reason, especially in B58. Those engines have superb cooling systems, so they keep oil temperature in check. Although you tuned your engine, I think HTHS of 3.5 is OK for you as the vehicle itself is not a performance vehicle by any means. So, you won;t be pushing it through curves etc. like I did this morning going skiing, keeping it pretty much between 5000-6500rpms for like an hour.
 
BMW, for the huge majority of its engines (except those that use 10W60), has a max HTHS of 4.1cP. Would higher hurt? No! But, you are creating more resistance, depriving the vehicle of performance for no good reason, especially in B58. Those engines have superb cooling systems, so they keep oil temperature in check. Although you tuned your engine, I think HTHS of 3.5 is OK for you as the vehicle itself is not a performance vehicle by any means. So, you won;t be pushing it through curves etc. like I did this morning going skiing, keeping it pretty much between 5000-6500rpms for like an hour.
Thank you and thank you for not going crazy over my questions. I've been learning a lot lol.
 
Do we know the Noack number for M1 ESP 0W-30 vs. Valvoline 0W-30 Euro?
Is there a number besides it's <= x?

Also iirc, all 3 (M1 ESP 0W-30, Pennzoil Euro L & Valvoline Euro 0W-30) are supposed to produce or cause less IVD in DI engines ... Is that still true?

Thank you!
 
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BMW, for the huge majority of its engines (except those that use 10W60), has a max HTHS of 4.1cP. Would higher hurt? No! But, you are creating more resistance, depriving the vehicle of performance for no good reason, especially in B58. Those engines have superb cooling systems, so they keep oil temperature in check. Although you tuned your engine, I think HTHS of 3.5 is OK for you as the vehicle itself is not a performance vehicle by any means. So, you won;t be pushing it through curves etc. like I did this morning going skiing, keeping it pretty much between 5000-6500rpms for like an hour.
Do you think HTHS 3.5 is much for my 22 wrx?
 
Do you think HTHS 3.5 is much for my 22 wrx?
I don’t think it’s too much at all, the only negative is that you might lose 0.5 to 1 MPG, but if you like to drive it hard, that turbo 4 will be better off with a 3.5 HTHS oil vs the 2.6-2.7 of a 0w20 (or the 3.0 of the typical non euro 5w30s)
 
Haven't I showed you non-US manuals already? Vaugely remember you posting your full engine-code.

FB20 Has 5W-40 in the book. FA24 non turbo has ACEA A3 5W30.
 
I don’t think it’s too much at all, the only negative is that you might lose 0.5 to 1 MPG, but if you like to drive it hard, that turbo 4 will be better off with a 3.5 HTHS oil vs the 2.6-2.7 of a 0w20 (or the 3.0 of the typical non euro 5w30s)
He won’t lose even that much mpg.
 
BMW, for the huge majority of its engines (except those that use 10W60), has a max HTHS of 4.1cP. Would higher hurt? No! But, you are creating more resistance, depriving the vehicle of performance for no good reason
Where is this max HTHS defined?
 
Anyone has access to the "internal documentation" of the oil companies to find the real Noack numbers that they are hiding these days! Several years ago that info was readily available.

That's why it's important to get oil with more relevant approvals to cover your ace cuz they can't hide that! They either have it or not.

Their main goal (as it should be) is making $ followed by quality of course for long term survival ... and the consumer main goal should be to at least get a good product for the price. We typically end up paying some premium for good marketing but that's another story and we want to minimize that. :ROFLMAO:
 
BMW, for the huge majority of its engines (except those that use 10W60), has a max HTHS of 4.1cP. Would higher hurt? No! But, you are creating more resistance, depriving the vehicle of performance for no good reason, especially in B58. Those engines have superb cooling systems, so they keep oil temperature in check. Although you tuned your engine, I think HTHS of 3.5 is OK for you as the vehicle itself is not a performance vehicle by any means. So, you won;t be pushing it through curves etc. like I did this morning going skiing, keeping it pretty much between 5000-6500rpms for like an hour.

I've been lurking and had a side question related to b58 oil and the cooling system - I've got the supra variant with a flex fuel tune that has the cooling set more aggressively. I'm running a 5w30 LL04 oil. Basically instead of staying above 200 f , oil is heating up to about 205 degrees when warming up and then it lowers and is keeping the oil temps around 178 - 182 degrees (maybe going a bit higher at times). Is a safe temperature range for the oil to be?
 
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