Does anybody have good advise on what kind of RPM to drive on a BMW 525TDS to keep it alive as long as possible? I have bought a 525TDS touring '97 with 250k KM on the counter.... and want to have at least some 2-3 years fun from it. So far it has been great, it looks really good, of course! and was really well kept by it's first owner.
I was owning a Opel Vectra 2 liter Diesel before, which I used to drive at between 2k and 3k RPM, which I consider very sweet on an engine, but still it broke down on me in the end..... (for the rest was actually a pretty nice car though, but of course no match for the current one

)
Of course I understand warming up the engine is very important, but can low RPM rates be harmfull for an engine also???????
Considering that on the Dutch highways, where I live (not on the highway), 120Km per Hr is the max speed, in fifth gear the car is only doing 2,5k RPM....
I have already trashed 3 engines in about 5 Years, so I am getting very frantic about this.... I have bought this BMW despite it's high mileage (have to consider budget also) because first of all it has always been my dream to drive a BMW, and second of all, I believe this is one of the strongest engines around....
Any help to prevent me from turning my BMW dream into a nightmare would be very helpfull......
Thx in advance for any advise.....
Michael van den Berg
The Netherlands