» Site Navigation | | » Recent Threads | | | 1999 M3 Swap 09-07-2023 10:10 PM 06-01-2024 03:04 PM 7 Replies, 409,954 Views | | My 318ti build 05-21-2024 04:48 PM 05-28-2024 06:42 PM 1 Replies, 3,768 Views | | OMG!OMG! 05-28-2024 08:53 AM 05-28-2024 08:53 AM 0 Replies, 1,543 Views | | | | | | 01-30-2007, 10:17 AM | #1 | Senior Member Join Date: Nov 2005 Location: çî†ÿ øf åNgëL§, CA Posts: 5,314 | ATTN: DASC'ers Im just curious to know why and if anyone also is experiencing this... Gas milage has improved a little bit better. But when im at 1/4 of gas left, it seems like its eating up the gas quicker. Why is that, or is it just me? Also, anyone looking to going for the NickG stage 3 software anytime soon? If so, we can probably group buy it if we can. Im kinda also looking foward to going with a 10psi pulley + the software if NickG can make it work for me. Anyway, just wondering about the gas situation. Oh and also, is it true if i went with a higher octane say 97+ unleaded will the stock ecu adjust that itself? Thanks in advance. | | | 01-30-2007, 01:47 PM | #2 | Senior Member Join Date: Jun 2003 Location: Greenville, SC Posts: 9,356 | Better gas mileage is because you are not getting into the power as much. The same thing happened to me when I installed a CAI and chip. I loved they way the CAI sounded. Can't answer the other questions. Once you are at 1/4, the gas goes down pretty quick. __________________ ...steven BMW CCA #146825 1996 BMW 328ti • 2003 MINI Cooper S • 2016 M235i www.bmwcca.org | | | 01-30-2007, 03:37 PM | #3 | Senior Member Join Date: Jan 2007 Location: Ireland Posts: 382 | Quote: Originally Posted by 1996Bmw318TI Oh and also, is it true if i went with a higher octane say 97+ unleaded will the stock ecu adjust that itself? Thanks in advance. | i think NickG will have to map the ecu to run 97 if you want to go down that road.... | | | 01-30-2007, 03:51 PM | #4 | Senior Member Join Date: Mar 2005 Location: NJ Posts: 1,625 | where do you get 97 octane gas in the states (in Jersey, anyway)?? only place I saw anything similar is CAM 2 Sunoco (I think) gasoline which is 100 octane, for like 6+ dollars a gallon! & that can't be very cost effective... Quote: Originally Posted by 318iS i think NickG will have to map the ecu to run 97 if you want to go down that road.... | | | | 01-30-2007, 03:53 PM | #5 | Senior Member Join Date: Jan 2007 Location: Ireland Posts: 382 | no it wont be cost effective and if you do get it mapped you wont be able to use the cheap stuff anymore.... | | | 01-31-2007, 01:18 AM | #6 | Senior Member Join Date: Nov 2005 Location: çî†ÿ øf åNgëL§, CA Posts: 5,314 | Quote: Originally Posted by 318iS i think NickG will have to map the ecu to run 97 if you want to go down that road.... | No i was just wondering cuz i read on bfc that your stock ecu will do adjusting by itself. Anyway, is anybody else with the DASC, does your gas go down faster from 1/4 to 0? | | | 02-02-2007, 01:12 AM | #7 | Member Join Date: Mar 2005 Location: Sydney, Australia Posts: 90 | i only ever run premium (98 oct) and it runs perfectly with nick's stage 2 __________________ Ian '97 Ti Sport DASC, TT S2, B&M SSk, x-brace, H&R coil overs & sway bars, Big brakes | | | 02-02-2007, 02:25 AM | #8 | Senior Member Join Date: Aug 2004 Location: state college, pa Posts: 3,431 | Quote: Originally Posted by 1996Bmw318TI Gas milage has improved a little bit better. But when im at 1/4 of gas left, it seems like its eating up the gas quicker. Why is that, or is it just me? | I've not noticed this myself (caveat: no DASC) but it could be due to the shape of the fuel tank. __________________ I scream, you scream, we all scream for ZOMBIES. | | | 02-02-2007, 07:52 AM | #9 | Senior Member Join Date: Nov 2005 Location: çî†ÿ øf åNgëL§, CA Posts: 5,314 | Quote: Originally Posted by saintly i only ever run premium (98 oct) and it runs perfectly with nick's stage 2 | lol your "premium" is 98 oct? My "premium" here in cali is 91 oct. Your car must haul ass huh with that high octane. I saw a gas station with 100 oct but it was 6.49 a gallon | | | 02-02-2007, 08:18 AM | #10 | Senior Member Join Date: Nov 2006 Location: Land of the Vikings Posts: 2,700 | your ecu should adjust itself from the signal from the lamda and O2 sensors. but this is only to adjust ignition timing so you dont get "engine knock" from bad quality fuels. it would normally take about a half tank (20 liters) of varied driving for the ecu to run the new settings as normal perameters. taking the battery off resets these to factory 95 ron (euro) . which is 91 pon (u.s) __________________ Vin Number decode and Retrofit Pdfs Available Free ! Just PM | | | 02-02-2007, 07:46 PM | #11 | Member Join Date: Jan 2005 Location: Belgium Posts: 42 | Over here in Belgium we only have the option to choose between 95 octane and 98 octane. Those are the only 2 ones here. Obviously I use 98 octane, sometimes along with an octane booster. Runs nice | | | 02-02-2007, 11:23 PM | #12 | Senior Member Join Date: Jul 2003 Location: Marion, IA Posts: 388 | Don't directly compare octane in Europe and many other countries to the US. We use AKI (anti knock index) and Europe uses RON. RON is usually 5 or 6 points higher, e.g. 98 RON is like premium (91 to 93, 89 at high elevations) in the US and 95 RON is like mid-grade (89-90, 87 at high elevations). | | | 02-03-2007, 05:17 PM | #13 | Senior Member Join Date: May 2005 Location: England, UK Posts: 1,288 | i always use 97 or 99 __________________ 1995 BMW 316i Cosmos Black Mods: • Magnex Cat-Back Exhaust • Smoked Corner Lights + Repeators • M3 17" Wheels • De-Baffled Air Box • AC HandBrake Handle and Gear Knob • DEPO Euro Epsiloids + Predator Chronium Rings • Chrome Interior bits •IE Poly-Urethane RSFMs • Kenwood Power Series Audio • Powder Coated e36 325 Front Callipers • Sports Seats | | | 02-08-2007, 01:49 AM | #14 | Senior Member Join Date: Nov 2005 Location: çî†ÿ øf åNgëL§, CA Posts: 5,314 | ok i got a question. If i were to put 3.5gallons of 100octane and 9 gallons of premuim (91octane) what would it actually come out to, how much octane? Will i feel a difference without tuning the ecu, you know just trying it for once. If i were to do that, then i go back to just 91premium, i wont experience detonation right? You know, hoping the engine didnt get used to the higher octane then going back to 91 and experiencing detonation now. | | | 02-08-2007, 02:26 AM | #15 | Senior Member Join Date: Mar 2006 Location: Ft Lauderdale, Fl moving to Eastern PA in May of 2007 Posts: 326 | Quote: Originally Posted by 1996Bmw318TI ok i got a question. If i were to put 3.5gallons of 100octane and 9 gallons of premuim (91octane) what would it actually come out to, how much octane? Will i feel a difference without tuning the ecu, you know just trying it for once. If i were to do that, then i go back to just 91premium, i wont experience detonation right? You know, hoping the engine didnt get used to the higher octane then going back to 91 and experiencing detonation now. | 93.52=((3.5*100)+(9*91))/12.5 __________________ 318ti, sport, hellrot, 05/95 Munich, Germany | | | | | Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | | Posting Rules | You may not post new threads You may not post replies You may not post attachments You may not edit your posts HTML code is Off | | | |