323i, 328i, 528i (e36, e39) MPG difference?
Discussion
Currently the above cars are 3 of a couple of other cars i am considering to purchase.
From reading around, a fair bit on here ther seems to be varying opinons on the cars mpg. I know its a boring subject but im afraid its a subject i have to consider.
It seems that some people think that the 323i's mpg can be noticeable better than the 328i and honest john (sometimes untrustworthy) backs this up.
From mainly reading on here it seems from looking at the "averaged" quoted figures the e39 528i seems to achive as good if not noticeably better mpg than the e36 328i??? Is this some exagerating or can the heavier e39 really be more economical than the e36 328i because of perhaps gearing or something???
Any thoughts/facts welcome! Thanks!
From reading around, a fair bit on here ther seems to be varying opinons on the cars mpg. I know its a boring subject but im afraid its a subject i have to consider.
It seems that some people think that the 323i's mpg can be noticeable better than the 328i and honest john (sometimes untrustworthy) backs this up.
From mainly reading on here it seems from looking at the "averaged" quoted figures the e39 528i seems to achive as good if not noticeably better mpg than the e36 328i??? Is this some exagerating or can the heavier e39 really be more economical than the e36 328i because of perhaps gearing or something???
Any thoughts/facts welcome! Thanks!
they 323i (and 523i for that matter) are in effect detuned 2.5 with 170bhp. these are very stress free engines, and reports of "good" MPG seems accurate.
I would suggest 30-35mpg average possible depending on transmission and driving style.
the 528i shares the same engine as the 328i. Not sure if they are mapped differently...my 525i was always more economical and lazier than an identically engines 325i in a friends. that was manic!
however, i would suggest most of these mpg claims are down to driving style. the 328i is a sports saloon, the 528i a more relaxed gentlemans express. again early 30s mpg wise is easily obtainable.
The newer 3.0 engine in the 5er and 3er seems slightly less economical. mines an auto, and even careful driving struggles to see 30mpg.
To conclude, most 6cyl BMWs offer near identical MPG. People driving styles make a big difference. As does transmission. If MPG is a big concern, get a manual, you will see around 4mpg more.
God I'm boring! 
I would suggest 30-35mpg average possible depending on transmission and driving style.
the 528i shares the same engine as the 328i. Not sure if they are mapped differently...my 525i was always more economical and lazier than an identically engines 325i in a friends. that was manic!
however, i would suggest most of these mpg claims are down to driving style. the 328i is a sports saloon, the 528i a more relaxed gentlemans express. again early 30s mpg wise is easily obtainable.
The newer 3.0 engine in the 5er and 3er seems slightly less economical. mines an auto, and even careful driving struggles to see 30mpg.
To conclude, most 6cyl BMWs offer near identical MPG. People driving styles make a big difference. As does transmission. If MPG is a big concern, get a manual, you will see around 4mpg more.
God I'm boring! Edited by matt21 on Friday 2nd April 22:48
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