Gas Mileage?

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  • jamiholzbach
    Grease Monkey
    • May 2006
    • 311
    #1

    Gas Mileage?

    I know we can't drive like little old ladies and keep our foot out of it, but which motor gets better gas mileage, the M20 or the M50 (2.5 version)?
    Tags: None
    • redbull 325is
      R3V OG
      • Feb 2004
      • 7471
      #2
      m21 :-P.... seriously the m50 by far
      Build Threads:
      Pamela/Bella/Betty/325ix/5-Lug Seta/S60R/Miata ITB/Miata Turbo/Miata VVT/951/325xi-6

        Comment

        • Ablice
          Wrencher
          • Sep 2006
          • 261
          #3
          Obviously the M50.

          The engine was simply designed more "modernly" and is both more efficient and more powerful.
          :mrgreen:
          Like game music? >clicky<

            Comment

            • PaintPro21
              Mod Crazy
              • Jul 2007
              • 660
              #4
              I get about 12mpg out of my s14 from mixed driving and 19-20 freeway but i have an aggressive rear end and a 1:1 5th gear which makes the freeway craptacular to drive on.

              I've never had an m20, but I got awesome gas millage with my m50

              ApexRaceParts.com - Facebook - Twitter

                Comment

                • E30 Cabrio
                  E30 Mastermind
                  • Oct 2006
                  • 1954
                  #5
                  My 86 325es got around 28 highway MPG, and my 88 325i cabrio gets about 26 highway, and that's with the 3.73 rear axle.

                  Both cars were "chipped" with generic one's from ebay.
                  sigpic
                  1988 5 spd.Cabrio/Lachs Silber/Black Leather/123k/Dealer Serviced & Maintained by both PO's
                  Clarion DXZ785USB HU, BBS Wheels, Leather e-brake handle & e-brake boot, Mtech 1 Wheel, Maplight Mirror, Performance chip, Rear Headrests.
                  Previous E30: 1986 5 spd. 325es/Delphin Gray/Black Leather/191k








                    Comment

                    • JeffOlson
                      Member
                      • May 2007
                      • 44
                      #6
                      My new-to-me '89 325ix: 16 to 17 around down, 22 to 23 on the highway. But I drive it hard, and it is an automatic.
                      sigpic

                      "One equal temper of heroic hearts, Made weak by time and fate, but strong in will, To strive, to seek, to find, and not to yield." Ulysses, ll. 68-70, Alfred, Lord Tennyson.

                        Comment

                        • DuMa
                          E30 Enthusiast
                          • Jul 2007
                          • 1101
                          #7
                          86 eta

                          gets 26mpg!!!

                            Comment

                            • schmidty
                              E30 Fanatic
                              • Jul 2004
                              • 1253
                              #8
                              19.4mpg :( (325is)

                                Comment

                                • Joe318is
                                  R3V OG
                                  • Sep 2005
                                  • 6451
                                  #9
                                  M42s get around 27-28mpg combined [65-70&#37; highway]


                                  Originally posted by vlad
                                  Do you know anybody else who built that many bad ass E30s?

                                    Comment

                                    • CorvallisBMW
                                      Long Schlong Longhammer
                                      • Feb 2005
                                      • 13039
                                      #10
                                      I get ~22mpg on the 325iS, about 75&#37; highway and a 3.73 rear end.

                                        Comment

                                        • Funkmasta
                                          R3V OG
                                          • May 2004
                                          • 7185
                                          #11
                                          Originally posted by PaintPro21
                                          I get about 12mpg out of my s14 from mixed driving and 19-20 freeway but i have an aggressive rear end and a 1:1 5th gear which makes the freeway craptacular to drive on.

                                          I've never had an m20, but I got awesome gas millage with my m50
                                          WOW... I get 14-17 around town and 25-30 on the highway in the M3.
                                          Joe Funk -- Portland Oregon
                                          That Guy.
                                          03 X5. 3 liter obviously.

                                            Comment

                                            • Mystikal
                                              Moderator
                                              Wheel Fitment Expert
                                              • Nov 2003
                                              • 9602
                                              #12
                                              lol @ everyone in the thread vomitting their mpg numbers when that wasn't the question at all

                                              M50 gets noticeably better mileage. My 3.0 S50 gets better mileage than the 2.5 M20.

                                              Jay

                                                Comment

                                                • euroshark
                                                  No R3VLimiter
                                                  • Apr 2006
                                                  • 3491
                                                  #13
                                                  Originally posted by DuMa
                                                  86 eta

                                                  gets 26mpg!!!
                                                  lol

                                                  I get 27mpg on the highway in my 533i, around 24mpg combined... In a 3200lb+ car. Why does the M20 even exist?

                                                  Go M50. Or better yet, be a man and go M30... M30s have big hairy manly balls.
                                                  '88 528e /// '88 M5 /// '89 951 /// '98 E430 /// '02 M5

                                                    Comment

                                                    • CorvallisBMW
                                                      Long Schlong Longhammer
                                                      • Feb 2005
                                                      • 13039
                                                      #14
                                                      Originally posted by euroshark
                                                      Or better yet, be a man and go M30... M30s have big hairy manly balls.
                                                      +1

                                                        Comment

                                                        • H&Re30
                                                          Wrencher
                                                          • Aug 2006
                                                          • 242
                                                          #15
                                                          my M20 gets around 19 in the city

                                                          and about 23, 24 on the mountain highway, so prolly close to 26 on the actual highway...
                                                          sigpic

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