is my 85 318i supposed to suck this bad?

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  • SLOWER
    Advanced Member
    • Oct 2009
    • 126

    #1

    is my 85 318i supposed to suck this bad?

    currently getting like 15 mpg or less which is a bitch cus i was hoping this car would save me money. im in 4th gear for even the slightest inclines on the highway, and third just to get up the big ones at a roaring 55mph, pedal to the metal.

    ive messed around with the distributor but it doesnt get any better. the slowness doesnt bother me that much but at least get me 30-40mpg, not 15...

    wtf mang
  • Farbin Kaiber
    Lil' Puppet
    • Jul 2007
    • 29502

    #2
    What have you done to it, that does not sound anywhere near right.

    Comment

    • iamsam
      Advanced Member
      • Jun 2008
      • 172

      #3
      they are supposed to get upwards 35-40 mpg. Or so i hear.

      Comment

      • Farbin Kaiber
        Lil' Puppet
        • Jul 2007
        • 29502

        #4
        Cap, rotor, wires, plugs, a new o2, and a timing and valve adjustment should be your first step.

        Comment

        • SLOWER
          Advanced Member
          • Oct 2009
          • 126

          #5
          its bone stock, new air filter, plugs.

          Comment

          • Farbin Kaiber
            Lil' Puppet
            • Jul 2007
            • 29502

            #6
            What kind of plugs? And you better not say Bosch Platinum +4's.

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            • SLOWER
              Advanced Member
              • Oct 2009
              • 126

              #7
              Originally posted by iamcreepingdeath
              they are supposed to get upwards 35-40 mpg. Or so i hear.
              thats why i picked her up :hitler:

              Comment

              • Farbin Kaiber
                Lil' Puppet
                • Jul 2007
                • 29502

                #8
                Pictures of pockmarks?

                Comment

                • SLOWER
                  Advanced Member
                  • Oct 2009
                  • 126

                  #9
                  Originally posted by Farbin Kaiber
                  What kind of plugs? And you better not say Bosch Platinum +4's.
                  dont recall ill check tomorow, surely though, that cant be the heart of the problem here

                  Comment

                  • Farbin Kaiber
                    Lil' Puppet
                    • Jul 2007
                    • 29502

                    #10
                    It can be a big part. Run the correct plugs, not the ones some guy at AutoZone suggests...

                    A quick search here finds...

                    Suggested replacements...


                    Plug P/N Bosch WR-9-DS

                    Comment

                    • Farbin Kaiber
                      Lil' Puppet
                      • Jul 2007
                      • 29502

                      #11
                      Trust me, I learned the hard way, dropped > $1000.00 on trying to get my 318i to run right, replaced almost every electronic component trying to get a hunting idle to go away.

                      Comment

                      • iamsam
                        Advanced Member
                        • Jun 2008
                        • 172

                        #12
                        I noticed you're in Boulder. Is your 318i a 2-door?

                        Comment

                        • Holland
                          R3V OG
                          • Nov 2008
                          • 7176

                          #13
                          That's definitely not right. I get roughly 27mpg because I flog it and it needs a tune up as well.
                          1985 M10b18. 70maybewhpoffury. Over engineered S50b30 murica BBQ swap in progress.

                          Originally posted by DEV0 E30
                          You'd chugg this butt. I know you would. Ain't gotta' lie to kick it brostantinople.

                          Comment

                          • SLOWER
                            Advanced Member
                            • Oct 2009
                            • 126

                            #14
                            yah creepin, its the shitbox 2 door faded black one you mightve seen. its sweet, just needs to run better.

                            i might try to do timing and stuff tomorow i guess... it definately sputters a bit like somethings off. fuck, think my timing lights busted though. agggghhh
                            Last edited by SLOWER; 05-06-2010, 10:04 PM.

                            Comment

                            • E30_Pare
                              R3V OG
                              • Oct 2008
                              • 7801

                              #15
                              Yea def needs a good tune up. I was getting around 20mpg driving like a grandma.

                              I seafoam'd, new air filter, new cap & rotor, new sparkplugs/wires, oil change. Now she runs like a champ & I'm getting about 34 highway. still need to do a vavle adjustment & see if I can sqeeze out another mpg or two.

                              NEW ERA AUTO GLASS - SFV SOCAL - 818 974-3673
                              DREWLIENTE

                              1$ PShops PM me

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