Originally Posted by Skunk#1
if the fuel filter was plugged up you would accually be getting great gas milage. but really, check your plugs, what color are they, that will tell you what is going on, also a compression test should be done, you may have a blown head gasket. between two cylinders, that would cause you to be running on 4 cylindrs and feel 10-15 hp loss.
this man knows what he's talking about
i just recently bought an e30 and was surprized at how bad the milage was. Tune-up didn't help at all. So i checked the compression and my results were 130-140 and #2 had 0 compression. (real bad)
So before changing anything check your compression.
(btw. it was a nice excuse for me to do an M50 conversion