BMW X5 and X6 Forum 2014-Current
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Post Reply
 
Thread Tools Search this Thread
      04-14-2014, 03:36 PM   #23
E90Fleet
Lieutenant General
South Africa
1311
Rep
10,185
Posts

Drives: BMW
Join Date: Apr 2005
Location: South Africa

iTrader: (0)

Use of lower octane fuel will cause the ECU to pull timing from the engine to prevent knocking, lowering power output and possibly increasing gas usage.
__________________
BMW if you are reading, I need a job, Please.
Appreciate 0
      04-14-2014, 10:16 PM   #24
MysticBlue
Lieutenant Colonel
369
Rep
1,887
Posts

Drives: '20 M5C, '09 M3 DCT Coupe
Join Date: Apr 2008
Location: Eastern Oregon... They call 'em rigs here

iTrader: (0)

Quote:
Originally Posted by E90Fleet View Post
Use of lower octane fuel will cause the ECU to pull timing from the engine to prevent knocking, lowering power output and possibly increasing gas usage.
Exactly. You said it in fewer words than I did. I just don't understand why someone would pay twice the price for a car than they really need to, then try to save a buck, maybe a buck and a half on a fill up. It won't hurt anything if you have to use lower octane, or accidently use it, but I just don't understand why someone would do it willingly. All that money spent for a high performance vehicle, then dial it back and get less performance and less gas mileage...
__________________
M5C 20% tint, Xpel full front, partial sides and rear. Spacers, 15mm front, 12mm rear. Turner Motorsport Oil Cooler Guard.
M3: Active Autowerke filter, Dinan underdrive pulley, Dinan full exhaust and software, 3.45 Differential, Springs, Brakes, Dinan/HRE wheels, 275/30-19 w/10mm spacer, 295/30-19 w/3mm spacer, painted front reflectors, 30% tint, Escort 8500i & Lidar Jammer, LUX H8 V5 halos, Euro rear foglights, 3M ClearBra.
Appreciate 0
      04-29-2014, 06:51 AM   #25
Shaw
Lieutenant Colonel
Shaw's Avatar
Canada
305
Rep
1,803
Posts

Drives: 2016 X5 35d | 2019 X3 30i
Join Date: May 2011
Location: Toronto

iTrader: (0)

Garage List
Quote:
Originally Posted by someguy View Post
I just use the green one (diesel) and there aren't any options for grade.
Ahmen!!!
Appreciate 0
      04-29-2014, 02:01 PM   #26
S1OOORR
Enlisted Member
15
Rep
33
Posts

Drives: 2014 F15 X5
Join Date: Apr 2014
Location: NEW YORK

iTrader: (0)

Quote:
Originally Posted by MysticBlue View Post
Exactly. You said it in fewer words than I did. I just don't understand why someone would pay twice the price for a car than they really need to, then try to save a buck, maybe a buck and a half on a fill up. It won't hurt anything if you have to use lower octane, or accidently use it, but I just don't understand why someone would do it willingly. All that money spent for a high performance vehicle, then dial it back and get less performance and less gas mileage...
i think you may misread the headline of this thread, I don't think anyone here mention putting below the recommended octane in their vehicle. A question was asked to see if 89 was being used by other X35 owners and 91. Now I'm not taking your post personal but everything i buy i try and save a buck even when i purchase my vehicle and gas. I'm pretty sure when you purchase your vehicle you tried to save a buck off the MSRP unless you just have money falling out of your pockets. Anyway back to the fuel on your gas cap if you haven't seen it. 89 was recommend as the minimum so my question is do you work for BMW to say the least that if a person puts the minimum recommend fuel in 89 will hurt performance i don't think so, if they told you to put 95 in the tank if there was a 95 will you just because they told you, or you will go with lower octane recommended by BMW. I get it 93 = performance yadda ya i mean who are you racing, is your vehicle on a track being race yeah then i will go with the higher octane for the performance, now if its every day driving 89 won't hurt. My thing is if its mention that you can use 89 whats the problem BMW telling you that its safe to use 89 what the problem really, its not the matter someone being cheap cause we all have BMW`s. Lets face it the truth some places the gas prices are outrageous i use 93 since i had my vehicle, even during refueling i look for the nearest gas station for the cheapest 93 it may just be me but if a gas station near me has 93 for 4 bucks even I'm not going to the one up the block for 4.10. You can't get rich or save money by throwing every buck you have away or cents. Just my thoughts enjoy your vehicle.
Appreciate 0
      04-29-2014, 03:27 PM   #27
E90Fleet
Lieutenant General
South Africa
1311
Rep
10,185
Posts

Drives: BMW
Join Date: Apr 2005
Location: South Africa

iTrader: (0)

Quote:
Originally Posted by S1OOORR View Post
i think you may misread the headline of this thread, I don't think anyone here mention putting below the recommended octane in their vehicle. A question was asked to see if 89 was being used by other X35 owners and 91. Now I'm not taking your post personal but everything i buy i try and save a buck even when i purchase my vehicle and gas. I'm pretty sure when you purchase your vehicle you tried to save a buck off the MSRP unless you just have money falling out of your pockets. Anyway back to the fuel on your gas cap if you haven't seen it. 89 was recommend as the minimum so my question is do you work for BMW to say the least that if a person puts the minimum recommend fuel in 89 will hurt performance i don't think so, if they told you to put 95 in the tank if there was a 95 will you just because they told you, or you will go with lower octane recommended by BMW. I get it 93 = performance yadda ya i mean who are you racing, is your vehicle on a track being race yeah then i will go with the higher octane for the performance, now if its every day driving 89 won't hurt. My thing is if its mention that you can use 89 whats the problem BMW telling you that its safe to use 89 what the problem really, its not the matter someone being cheap cause we all have BMW`s. Lets face it the truth some places the gas prices are outrageous i use 93 since i had my vehicle, even during refueling i look for the nearest gas station for the cheapest 93 it may just be me but if a gas station near me has 93 for 4 bucks even I'm not going to the one up the block for 4.10. You can't get rich or save money by throwing every buck you have away or cents. Just my thoughts enjoy your vehicle.

Yes, 89 will not hurt your engine

On a hot day at sea level will it produce its full rated power with 89, probably not.

But on a very cold night at 6,000 feet above sea level it may produce full power on 89 ( though these turbo engines are more sensitive to octane ratings than the normally aspirated ones and probably need minimum 91 even in these conditions)


If you want the full performance figures from your engine (power and consumption) at any regular altitude and temperature, use the highest octane you can get.


Dont care about getting full performance and wanting to save a bit on gas, get 89.

(US octane figures quoted, not euro type)
__________________
BMW if you are reading, I need a job, Please.
Appreciate 0
      04-29-2014, 04:05 PM   #28
Nkbm82
Private First Class
Nkbm82's Avatar
74
Rep
196
Posts

Drives: 2018 BMW 750i
Join Date: Jan 2014
Location: Newport Beach, CA

iTrader: (0)

91 because if gas prices were an issue I wouldn't have purchased an $85k suv that gets 11mpg lol! I also want maximum performance.
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 09:14 AM.




xbimmers
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST