<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by P.E.Haiges:
Aaron: I get only 23 MPG not the 28 I should get and that you get on your 300SD. What can I do to increase the milage on my 300SD? It has 180K miles but runs just about perfect except for the excess fuel consumption.<HR></BLOCKQUOTE>
There aren't a lot of cheap repairs here. Injectors can be improved with additives but a new set will buy a lot of fuel.
One area thats cheap is the boost signal and of course boost itself. You should measure the boost after the overboost protection switch-over valve. Measure it between the valve and the injection pump. It should max at about 10psi. If you don't get good power you won't get good mileage.
Owner 24 bay BSC
Bosch Master, ASE master L1
26 years MB technician