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Discussion Starter #1 (Edited)
How come it's 18,000m in the UK but 10,000m in the USA, for the same model?

And yes, it is Miles

:dunno:
 

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How come it's 18,000m in the UK but 10,000m in the USA, for the same model?

And yes, it is Miles

:dunno:
Does BMW in UK use LL-04 oil, which is low-SAPS? The US gasoline has high sulfur content and the LL-01 and LL-14 are high-SAPS formulation. The high-SAPS supposedly protects the oil but still the high sulfur content in US gasoline is not kind to the oil.

Having said that, the US diesel has similar sulfur content as in Euro diesel, but the OCI for US diesel is also 10k miles.

One possibility is that since the US-spec cars till MY13 used to have 15k/2-yr free oil change for 4-yr/50k miles, with a low-mileage oil change at 1-yr mark.

By going to 10k/1-yr BMWNA saves money by eliminating low mileage oil change.
 

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USA engine oils are made to USA specification only.
Other way made cheaper for business and frequent repairs
Creating more job for peoples and billions for oil company and service centers.
 

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How come it's 18,000m in the UK but 10,000m in the USA, for the same model?

And yes, it is Miles

:dunno:
I think this explains some crossed wires in the other oil change thread. 18K miles is BS. To the best of my knowledge, Amsoil is the only oil manufacturer that recommends OCI this long. Most of the mainstream high quality synth oils recommend close to 10k.

I always use the lesser of the oil manufacturer or the vehicle recommended. I use Mobile 1, they say 10k. I change at 1yr/10k/ or whenever the OCM kicks, whichever comes first.
 

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Yes many things change with new engine technology
New gas engines are direct injected like a diesel plus every one getting turbo charger
to create lots of power.
More stress and heat in the engine.

European engine oils are made from best material and additives
American ignoring European specs or culture and everything doing to own feelings.

Amsoil and Redline been best Synthetic engine oils
Today I not sure what are doing for those modern engines?
Possible economics can force them to go for cheap materials to make engine oils.

Mobil1 full Synthetic is very good engine oil
Driver and style of driving can play lots how frequently need replaced?

Short distance and bumper to bumper driving shortening oil life.

I believe 10.000.00 mil for normal driving is very good in older engines
The new one like 2014 up to now 2016 go for recommended specs.
This all is forced by more tough emission
 
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