Needless to say, it'll be a long night 
I'm in the Toronto (ON) area.
However, this will be my first diesel vehicle (currently have a 535xi) and had a few questions:
1. I've noticed two grades of diesel at local stations - should I be using the 'premium' diesel version? What's the difference between the two?
2. I'm sure this question has been asked a million times before - what's the best way to break-in the engine. Read some posts elsewhere mentioning not to put the car on cruise and some others say to drive hard to break the engine in. I'm confused! Would love to hear your views.

I'm in the Toronto (ON) area.
However, this will be my first diesel vehicle (currently have a 535xi) and had a few questions:
1. I've noticed two grades of diesel at local stations - should I be using the 'premium' diesel version? What's the difference between the two?
2. I'm sure this question has been asked a million times before - what's the best way to break-in the engine. Read some posts elsewhere mentioning not to put the car on cruise and some others say to drive hard to break the engine in. I'm confused! Would love to hear your views.
Senior Member
I would use the NON-bio diesel. There are several threads about the different type of diesel in this forum you might want to read.
Diesels are great engines and I would break in the way the manual says to do so. I also like to let my diesel engine wake up as easy as possible till it warms up, keeping the RPM low until the oil flows a little better. Driving like you stole the vehical is for people who do not know better.
You will love the torque at low RPM.
Enjoy today, picking up a new Benz is always a good day!
Diesels are great engines and I would break in the way the manual says to do so. I also like to let my diesel engine wake up as easy as possible till it warms up, keeping the RPM low until the oil flows a little better. Driving like you stole the vehical is for people who do not know better.
You will love the torque at low RPM.
Enjoy today, picking up a new Benz is always a good day!

MBWorld Fanatic!
Quote:
2. I'm sure this question has been asked a million times before - what's the best way to break-in the engine. ....
I wondered the same myself, there are a lot of gas powered guru's who will tell you drive the new car/bike really hard and it will a hard running engine.Originally Posted by sufi-toronto
....2. I'm sure this question has been asked a million times before - what's the best way to break-in the engine. ....
Didn't think that would apply to the low revving diesel and I find myself just driving it easy because it's such a luxo-cruiser.
Thanks for the feedback guys. Picked it up today. Quite a change after driving 3 different generations of 5-series over the last 9 years... but I like what I see/feel so far!
Quote:
Diesels are great engines and I would break in the way the manual says to do so. I also like to let my diesel engine wake up as easy as possible till it warms up, keeping the RPM low until the oil flows a little better. Driving like you stole the vehical is for people who do not know better.
You will love the torque at low RPM.
Enjoy today, picking up a new Benz is always a good day!
Originally Posted by GregGebhardt
I would use the NON-bio diesel. There are several threads about the different type of diesel in this forum you might want to read.Diesels are great engines and I would break in the way the manual says to do so. I also like to let my diesel engine wake up as easy as possible till it warms up, keeping the RPM low until the oil flows a little better. Driving like you stole the vehical is for people who do not know better.
You will love the torque at low RPM.
Enjoy today, picking up a new Benz is always a good day!
Quote:
Didn't think that would apply to the low revving diesel and I find myself just driving it easy because it's such a luxo-cruiser.
Spoke with the sales rep and he said that there's no specific need to "break-in" the engine, per se. Just to drive normally and not speed beyond 120kmph for the first about 5,000kms or so.Originally Posted by DFW01E55
I wondered the same myself, there are a lot of gas powered guru's who will tell you drive the new car/bike really hard and it will a hard running engine.Didn't think that would apply to the low revving diesel and I find myself just driving it easy because it's such a luxo-cruiser.
Sounds like logical advice to me. With the advances in technology and engineering, I think the engines area better equipped/designed for consumers to simply be able to drive normally right off the lot.
Thanks for your feedback though - much appreciated
