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Super Unleaded
- AndyO
- Member
- Posts: 83
- Joined: Sat Oct 01, 2016 7:46 pm
- Location: Malpas, Cheshire
Super Unleaded
What's the opinion on super unleaded? Is it worth the extra cost? I understand it gives you extra MPG and cleans the engine. Is this true?
First time Z4 owner in Cheshire.
2011 E89 Z4 sDrive23i M Sport Auto. Black Sapphire. 19" 326M wheels. Purchased May 2017 (for pleasure).
2004 E83 X3 2.5i Sport Auto. Bluewater Metallic. Purchased June 2018 (for practicality).
2011 E89 Z4 sDrive23i M Sport Auto. Black Sapphire. 19" 326M wheels. Purchased May 2017 (for pleasure).
2004 E83 X3 2.5i Sport Auto. Bluewater Metallic. Purchased June 2018 (for practicality).
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- Member
- Posts: 314
- Joined: Tue Jul 24, 2012 1:26 pm
- Location: Suffolk
Super Unleaded
I had an e85 3.0 for 5 years, never used it, now in e89 and not using. I prefer to annually service my cars rather than wait for the mileage intervals. Use the saving of normal versus super to fund the additional service cost.
E89 23i pearl black.
E85 Titanium Silver 3.0se sold
E85 Titanium Silver 3.0se sold
- AlfaScozzesi
- Senior Member
- Posts: 1311
- Joined: Sun Feb 22, 2015 5:36 pm
- Location: Spean Bridge, Highlands
Super Unleaded
I always have in my "loved" car, not so much in any runabout.
The thought process being that the expensive additives will keep the engine better than fuel without. There are some who say better fuel economy levels the extra cost and although better I don't think it quite does this.
Not the way I drive anyway
Lots of threads and opinions on this.
The thought process being that the expensive additives will keep the engine better than fuel without. There are some who say better fuel economy levels the extra cost and although better I don't think it quite does this.
Not the way I drive anyway
Lots of threads and opinions on this.
- Tumnus
- Member
- Posts: 88
- Joined: Tue Apr 11, 2017 3:15 pm
Super Unleaded
I've just put a tank of BP Ultimate in, I consistently get 34 - 34.4mpg on my work run with normal unleaded, so I'll let you know if I see any difference in mpg with super.
CC retrofit, LUX 180 Angel Eyes, Rockford Fosgate Speakers, BMW Performance Grilles, LCI Indicators, Remus exhaust, SmartTOP
https://www.flickr.com/photos/nickj1972/albums
- AlfaScozzesi
- Senior Member
- Posts: 1311
- Joined: Sun Feb 22, 2015 5:36 pm
- Location: Spean Bridge, Highlands
Super Unleaded
Again most think it takes a couple of tanks to get the full benifit as the engine management adjusts to the different octane rating.
- sunnydays
- Member
- Posts: 983
- Joined: Fri Sep 23, 2016 7:50 am
Super Unleaded
I always run V Power Nitro 99 in my 35is. Increased mpg, Additives better for the engine etc.....
Last edited by sunnydays on Tue May 23, 2017 7:52 pm, edited 1 time in total.
- ronk
- Lifer
- Posts: 14233
- Joined: Tue Feb 24, 2009 11:50 am
- Location: Durham
Super Unleaded
Have a search on the forum for previous posts - You will find every answer under the sun!
You don't stop playing when you get old - You get old when you stop playing!
So I bought a 35is with all the toys to play with.
So I bought a 35is with all the toys to play with.
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- Lifer
- Posts: 5277
- Joined: Wed Feb 19, 2014 3:01 pm
- Location: NW London
Super Unleaded
I find I get enough extra miles out to warrant the cost. If it cleans better, then even better still.
3.0si Sport: F10 Illuminated ZHP, Retrofit Cruise, OE Stubby, Gaptech RCH+, Kenwood BT73DAB + Handsfree, HIDs, LED Sidelights, OE LED Number Plate Lights, Custom LED strip bootlight.
- Tumnus
- Member
- Posts: 88
- Joined: Tue Apr 11, 2017 3:15 pm
Super Unleaded
Yeah when I disconnected my battery the car went back to a base fuel map, and it took about 200-300 miles before my mpg was back to normal.AlfaScozzesi wrote: ↑Tue May 23, 2017 7:43 pm Again most think it takes a couple of tanks to get the full benifit as the engine management adjusts to the different octane rating.
CC retrofit, LUX 180 Angel Eyes, Rockford Fosgate Speakers, BMW Performance Grilles, LCI Indicators, Remus exhaust, SmartTOP
https://www.flickr.com/photos/nickj1972/albums
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- Member
- Posts: 403
- Joined: Tue Jul 16, 2013 10:58 am
- Location: Cornwall
Super Unleaded
I Never run on anything less than SUL
- Worcester_spoon
- Senior Member
- Posts: 1544
- Joined: Sat Apr 30, 2011 5:53 pm
- Location: Basingstoke, Hampshire
Super Unleaded
Super for me. In my mind it makes my car faster
03 Z4R 3.0i/Silver/custom quad/330d brake upgrade/LSD/G-Power supercharger/FIC 365cc injectors/Severn Tuning map
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- Lifer
- Posts: 8202
- Joined: Tue Oct 26, 2010 2:52 pm
Super Unleaded
So on N54 cars at least they're mapped to utilise the better detonation characteristics of high Ron values and timing (therefore power) is reduced a little on 95ron.
I can confirm this on a dyno day where identical cars with different Ron fuel produced different power values. Difference was minor however at around 15hp.
I can confirm this on a dyno day where identical cars with different Ron fuel produced different power values. Difference was minor however at around 15hp.
- AndyO
- Member
- Posts: 83
- Joined: Sat Oct 01, 2016 7:46 pm
- Location: Malpas, Cheshire
Super Unleaded
Thanks for all your comments. I'll definitely try super unleaded for the foreseeable and see how it goes.
First time Z4 owner in Cheshire.
2011 E89 Z4 sDrive23i M Sport Auto. Black Sapphire. 19" 326M wheels. Purchased May 2017 (for pleasure).
2004 E83 X3 2.5i Sport Auto. Bluewater Metallic. Purchased June 2018 (for practicality).
2011 E89 Z4 sDrive23i M Sport Auto. Black Sapphire. 19" 326M wheels. Purchased May 2017 (for pleasure).
2004 E83 X3 2.5i Sport Auto. Bluewater Metallic. Purchased June 2018 (for practicality).
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- Senior Member
- Posts: 2814
- Joined: Sun Nov 20, 2016 2:49 am
- Kingfisher
- Member
- Posts: 379
- Joined: Tue Nov 01, 2016 1:04 pm
- Location: South of France.
Super Unleaded
As you say ... the thing is designed to run on 95 so why use anything different? Extra mileage and faster acceleration may well be partly psychological after paying the extra! ...
Dec 2014 ... E89 35is sDrive M DCT ... Red ...