[quote=Busterboo post
"Unleaded fuel qualities with 91 RON and higher are permitted."
[/quote]
And as it doesn't give a maximum figure 99 Ron is fine then.
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Super Unleaded
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- Lifer
- Posts: 11026
- Joined: Tue Feb 10, 2015 10:27 pm
Super Unleaded
M roady...OEM CSL’s, strut brace, Remus back boxes, ZHP
MR2 MK 2
E89 35i project car...mapped 365bhp, M4 stoppers & wheels, KWV3’s, H&R front ARB, M3 front arms, strut brace Eisenmann cat back race exhaust, VRSF downpipes inbound
E89 35is
G29
MR2 MK 2
E89 35i project car...mapped 365bhp, M4 stoppers & wheels, KWV3’s, H&R front ARB, M3 front arms, strut brace Eisenmann cat back race exhaust, VRSF downpipes inbound
E89 35is
G29
- Smartbear
- Lifer
- Posts: 13685
- Joined: Wed Feb 05, 2014 6:54 pm
- Location: a barn in Somerset
Super Unleaded
My 20i made good power on the Dyno which the operator attributed to super unleaded fuel, if it cleans the internals of your engine and enables it to make more power then why wouldn't you use it?
It even gives you a smidgeon more economy!
Rob
e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold
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- Senior Member
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- AndyO
- Member
- Posts: 83
- Joined: Sat Oct 01, 2016 7:46 pm
- Location: Malpas, Cheshire
Super Unleaded
I wish I'd never started this
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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- Lifer
- Posts: 11026
- Joined: Tue Feb 10, 2015 10:27 pm
Super Unleaded
Shell V power nitro + rated at 99 ron has up to 5% ethanol mix, the cap suggests and the handbook says you can fill up with fuels with no more than 10% ethanol mix, therefore 99 ron would seem perfectly ok to use, I'd say that was backed up by BMW not, to my knowledge anyway, putting out a statement stating not to use 99 ron nitro for example, especially as they have a connection with Shell. I would suggest the cap sticker is from the E89 first sales in 2009 and hasn't been updated since. Shell nitro + was introduced in 2015.
M roady...OEM CSL’s, strut brace, Remus back boxes, ZHP
MR2 MK 2
E89 35i project car...mapped 365bhp, M4 stoppers & wheels, KWV3’s, H&R front ARB, M3 front arms, strut brace Eisenmann cat back race exhaust, VRSF downpipes inbound
E89 35is
G29
MR2 MK 2
E89 35i project car...mapped 365bhp, M4 stoppers & wheels, KWV3’s, H&R front ARB, M3 front arms, strut brace Eisenmann cat back race exhaust, VRSF downpipes inbound
E89 35is
G29
- Garvin
- Member
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- Joined: Mon Jan 03, 2011 6:27 pm
- Location: Cambridgeshire
Super Unleaded
99 RON fuel will do no harm. It may be a waste of money though if the ECU fuelling/ignition map can't take advantage of it. The 10% ethanol is important though - a lot of seals don't like ethanol and can degrade rapidly when exposed to high levels of it.
- sunnydays
- Member
- Posts: 983
- Joined: Fri Sep 23, 2016 7:50 am
Super Unleaded
I dont beleive 99 Ron fuel was commercially around in 2009 like it is now