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Not sure about my 535d diesel, but my wife's 323i gasoline 2.5L six has an electric water pump that doesn't pump any coolant until the engine reaches a certain temperature. This gets the cylinder head hotter faster and decreases cold-start emissions.

Excellent article, thanks for sharing! I do wonder about one thing they say: "...it should not be allowed to idle for extended periods of time; 3 to 5 minutes (depending on ambient temperature) of idling is generally sufficient to allow oil pressure to stabilize and engine temperature to reach...

I forgot about that - thanks for the reminder! Funny, since I get better mileage with my narrower winter tires than I seem to with my wide summer tires, LOL. Firestone Indy 500s are not a LRR design! :)

I'm pretty sure my 535d has an auxiliary heater in the HVAC - it's blowing warm air a couple minutes after a cold start. I'm impressed with how quickly this engine heats up, but there's no way the coolant is delivering that kind of heat from the heater core that quickly.

Excellent data, thanks! So I can get moisture out of the oil since it regularly hits 100C oil temps, but ya, not even going to be close to burning off any diesel. :)

Yes, this I'm aware of and is why they're always lean - the throttle in a diesel is restricting/metering fuel to the engine, not air. Funny enough, my 535d does actually have a throttle body, but if I had to guess it's related more to controlling flow through the EGR circuit than throttling the...

Ha, that must be it! I've noticed this 535d hangs onto gears longer than seems necessary for the first minute or so of driving. Funny, my Wife's 323i (gas 2.5L six) does this too, though I'm not sure if it's emissions related or just oddball programming... the transmission logic in that car is...

Below is my understanding - if incorrect please correct me. Gas engines run rich when they're cold, which can lead to fuel contamination/dilution of the oil. This is why its recommended to drive a gas car gently to warm it up instead of letting it idle; warms up quicker, produces fewer...

Wow, that's... bold? EDIT: Not to show off, but...

If you're a short-trip driver with a diesel then the DPFs are prone to clogging. If you stretch the OCIs there are lots of valves/solenoids in the engine that can get plugged up (I change at 2/3 to 3/4 the OEM OCI usually). Other than that, my research has indicated that the F10 BMWs are...

I know you're insistent on a new car, however I just bought a 2016 DIESEL BMW 535d and I can't imagine wanting more from a highway cruiser. The last year for the 5-Series diesel is 2018, and though I haven't driven that new G30 it should be an improvement over my older F10 generation car in...

Very interesting... according to BMW this LL-12FE is only to be used for specific applications: https://www.bmw.ca/en/topics/offers-and-services/bmw-accessories.bmw-twin-power-turbo-bmw-longlife-12-fe-sae-0w-30-1000-ml.html "Suitable for BMW diesel engines from model year 2014 with the...

Yes, I see that after looking into it. Thanks!

But, I thought I said... Thanks for the LL04 list, though! :) Excellent info, thanks! I guess I should call the dealer just to get a price, but I'm now armed with some alternatives should I feel compelled to look for some sales. Since I waited until I actually needed an oil change before...

I'm the new owner of a used 2016 BMW 535d with the N57 Diesel straight six engine (N57D30O1, same as the 530d sold outside of North America). The car calls for 0W-30 LL04 oil. It has a DPF with urea injection. It's time for an oil change and I can't seem to find any LL04 oils locally (Ottawa...

A-Harman, you beat me to it.

Originally Posted By: KrisZ And don't forget that the clearances get bigger as the temperature drops. ? Can you please explain this.

And the questions still remain unanswered... Man, if I ever won the lottery, some serious ultra high shear rate viscosity testing would be on my to do list for sure. I guarantee the answers to these questions exist, but we are not quite privileged enough to be exposed. Shannow, I'm still...

Interesting additional tidbit... is this a fancy way of marketing the PCV system, or is there something to this? http://www.motortrader.com.my/news/more-details-about-the-lexus-nx-200t-and-300h/ "To keep the engine oil clean, the intake system creates a syphon which draws carbon vapours away...

From the Lexus Press Release page: https://www.pressroom.com.au/press_kit_detail.asp?kitID=355&clientID=3&navSectionID=6 "Lexus developed a new 0-20W viscosity lubricating oil without calcium content to remove the chance of engine knock at low engine revolutions." Calcium = knock? I wonder...