Quote:
Originally Posted by whiteMB
Hello - I have a 98 e300td with 157,000 miles and generally enjoyed 28-30 MPG. It dropped to about 25 and now it is in low 20s. I changed air filter, added fuel injector cleaner to gas but still have low mileage. I don't smell anything, nothing is leaking - any suggestions?
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The change seems too extreme to be just attributed to USLD fuel.....
Check for a malfunctioning/siezed brake caliper....especially the rears. A dragging brake along with a fuel change to USLD may drop your mileage that much.
I am assuming that there are no other symtoms since you did not mention any rough idle or stalling out.
If it was a problem associated with electical or a fuel and air flow metering component (like a MAF sensor or Turbo relay) you would have had a malfunction message and code thrown. So check thoughs brakes.....
__________________
FRED
Daily Driver: 98 E300TD 199K
Hobby Car: 69 Austin Mini
Past Diesels: 84 300SD, 312K
87 300SDL, 251K
94 Chev. K-1500 6.5Ltr.TD, 373K