Fuel Economy on older Diesels

[charlie colvin]

Could someone give me some idea of what MPG can be expected from the older diesels? I am looking at the early to late 80's 240's and 300's. The 4,5, or 6 cylinder diesel engines in a 4-door sedan are what I am interested in. I am hearing all ranges of numbers on their economy. The car will typically be driven 70 MPH on interstate highways. Thanks,

Charlie

 

[Mikesmerc]

Hi Charlie
I have owned a 200D, 240Dand my dad had a 300D 5cyl. What I found with these cars was that the larger the engine size the slightly more economical they became. I would suggest a 300D as it would be less stressed as the 240. Top speed of the 200 was 85mph and I would assume not much more for th 240.
Fuel economy 30-37 for four cylinders and 35-40 for five cylinders.(these cars were high milage and Im sure it could have an effect on fuel consumption)
This is only my opinion, Im sure you will have further posts on this subject.

Regards
Mike

 

[thekeeper24]

I would agree with mike, I have a 300d non turbo (straight 5 US spec), and I average in the lower 30MPG range when cruising @65-70mph.... dont forget, its also how you drive your merc and dont plan on racing anyone up hills & steep inclines. :twisted: i enjoy driving mine on the highway,& have no problem keeping up with traffic (not over 70)
-best of luck and enjoy. :lol:
mike