|
|
|
#1
|
||||
|
||||
mpg on a 1984 300DT
I only get about 24 mpg in my 84 300DT, i alredy changed both fuel filters airfilter, fuel lines, banjo bolt, valves adjusted, oil changed (rotella). I usually cruise at 65 mph and its 90% HWY. What could be wrong??
Thank you BTW: what is the parts number for the alda banjo bolt?? Last edited by 94mgm; 07-19-2007 at 05:47 PM. |
#2
|
|||
|
|||
valve adjustment
camshaft timing valve timing The best you will likely get from that vehicle is 27-28 mpg under the conditions described. |
#3
|
||||
|
||||
i did adjust the valves, but how do i check the latter two??
|
#4
|
||||
|
||||
Do you use your A/C? I get better mileage in cooler weather when the A/C is not used.
__________________
RRGrassi 70's Southern Pacific #5608 Fairmont A-4 MOW car 13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete. 91 W124 300D Turbo replaced, Pressure W/G actuator installed. 210K 90 Dodge D250 5.9 Cummins/5 speed. 400K |
#5
|
|||
|
|||
24mpg is normal, especially if you use your A/C.
|
#6
|
||||
|
||||
I second that 24 is normal. I have 3..
78 300 D na 23-25mpg 85 300 D 22-26mpg 79 300SD 18-23 mpg All are ranges hand calculated over the last year. Lower mpg when cold out, higher mpg when hot out.
__________________
1959 Gravely LI, 1963 Gravely L8, 1973 Gravely C12 1982 380SL 1978 450 SEL 6.9 euro restoration at 63% and climbing 1987 300 D 2005 CDI European Delivery 2006 CDI Handed down to daughter 2007 GL CDI. Wifes |
#7
|
||||
|
||||
hmmm... My 2.3 ton 5.7 liter cadillac with 260hp got better mileage @80 MPH. I thought these cars did better...
Thanks though |
#8
|
|||
|
|||
Quote:
At 70mph driving pure hwy without the AC my 83' 300D will get 27mpg. A mixture of city and highway driving will reduce the mileage to around 25mpg. The mileage you describe sounds pretty normal. |
#9
|
|||
|
|||
That MPG sounds normal for my MBs too.
__________________
JWJ 1983 MB 300D - > 430,000 miles - Deep Blue - Bilstein Comforts - 0-60 in 24 seconds - 27MPG 1985 MB 300TD (wagon) - > 275,000 miles - Manila Beige - Thule rack - 0-60 in 18 seconds - 22 - 25MPG Biodiesel, Mobil Delvac 1, and Viton fuel lines! |
#10
|
||||
|
||||
The wonders of overdrive
__________________
1985 CA 300D Turbo , 213K mi |
#11
|
||||
|
||||
My 83 300TD got 30 @ 60 mph without air on.
__________________
Resurrected Nov 2010 - 79 240(SD) with 83 617 engine and 4 speed manual, 2.88 rear and 2.5" straight pipe unknown mileage (Salmon) 83 240D parting out 96 Dodge Cummins 5 sp 4X4 long bed - 310k http://flickr.com/photos/11103112@N03/ |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|