https://www.fcpeuro.com/products/bmw-oil-change-kit-5w-30-liqui-moly-11428583898-lm
The preferred oil is 0W20 in Sweden because of their ridiculous EPA policies. It has nothing to do with being better for the engine. That is ALWAYS the case when these thin oils are recommended. Backdoor climate deals + exchanges of money.
No offense but I'll take the info found in this thread over anything printed in the owner's manual.
Unless you're starting your car up at -20C or below, a 0W vs 5W rating doesn't really matter. I'd hazard a guess that 90% of the cars on this forum aren't driven below 0C, where even a 10W would be fine. In general, the smaller the gap between the "winter" rating and the 100C rating, the more shear resistant the oil is. If you don't need extreme winter protection, you're better off with a higher winter rating because it means fewer additives and less shear damage, again all things being equal.
A tuned B58 in Florida will have completely different considerations than OP's stock engine in Nebraska.
Why do climate and emissions regulations always have to be a conspiracy to make more money, and never anything to with the fact that something needs to be done about our worsening global climate situation
Since you're following the manual, I won't discuss the topic of breakin nor oil viscosity since the manual is correct and was never swayed by legal interests.A tuned B58 in Florida will have completely different considerations than OP's stock engine in Nebraska.
I will trust the info that the actual BMW engineers, aka the people who actually know the considerations that were taken when designing, building, and determining the specifications of the engine, over random people on the internet.
Why do climate and emissions regulations always have to be a conspiracy to make more money, and never anything to with the fact that something needs to be done about our worsening global climate situation
Nobody said it was a conspiracy, but it's a fact that backdoor corporate deals are taken and accepted from EPA regulators in the car industry. That is a fact sir, not a conspiracy. You do what you feel is right, but I'll take the advice of all knowledgeable enthusiasts, reputable tuners, and world class race teams who all share the same opinion with no political agendas attached. The manufacturers recommended oil is shit and they never recommend running it, especially if the engine is tuned.A tuned B58 in Florida will have completely different considerations than OP's stock engine in Nebraska.
I will trust the info that the actual BMW engineers, aka the people who actually know the considerations that were taken when designing, building, and determining the specifications of the engine, over random people on the internet.
Why do climate and emissions regulations always have to be a conspiracy to make more money, and never anything to with the fact that something needs to be done about our worsening global climate situation
If you don't care about the warranty the Rotella T6 is fine. However if anything does goes wrong, you'll be stuck with the bill as it's not a BMW approved oil spec. I'm not disagreeing with you that T6 is a good oil btw, but BMW will never approve any warranty work if they take oil samples.
Who thinks that? Lol, most people confuse it with "weight" when it actually means Winter. Oil definitely thins out the hotter it gets - there's no debate there.I am honestly still baffled that most people think the number in front of the W means "warm".... and that oil "thins" out when it gets warm.
You do know how they come up with viscosity numbers right? The numbers are based on flow resistance. The less the resistance (thinner oil) the smaller the number. That meaning if the 100°c # is bigger, it doesnt flow as well, meaning more resistance which equates to a thicker oil.
