E90Post
 


GetBMWParts
 
BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > UK Technical Forum > The difference between 95 RON and 99 RON fuel in the 335i



Reply
 
Thread Tools Search this Thread
      02-04-2010, 11:31 AM   #23
TMP
Colonel
 
TMP's Avatar
 
Drives: M135i
Join Date: Nov 2008
Location: Cheshire

Posts: 2,874
iTrader: (0)

Quote:
Originally Posted by milesr3 View Post
Shell don't make any claims about it doing anything other than keeping your engine clean, but BP do make claims about their Ultimate diesel producing more power (up to 8% IIRC).
Hmm, i quote from the Shell website tag line: "Designed for more power for longer"

Super UL has been proved over and over (I only ever used it in my Scooby), and its great to see it works so well in the 35i, but Diesel seems to be suspiciously absent of this proof

Will have a looky at BP though....
__________________
M-Lite v2 & Family 5er v2
TMP is offline   United Kingdom
0
Reply With Quote
      02-04-2010, 11:45 AM   #24
milesr3
Private First Class
 
Drives: 535d SE
Join Date: May 2009
Location: Suffolk, UK.

Posts: 193
iTrader: (0)

Quote:
Originally Posted by TMP View Post
Hmm, i quote from the Shell website tag line: "Designed for more power for longer"
My interpretation is that Shell's claims are less bold, being focussed more on engine cleanliness as a means of maintaining optimum performance (which is hard to dispute), whereas BP go further with their claims of extra power, economy and reduced emissions and particulates based on independent testing by MIRA. In practice both fuels exhibit the same benefits, but BP should be applauded for publishing their results.
milesr3 is offline  
0
Reply With Quote
      02-04-2010, 12:01 PM   #25
HighlandPete
Brigadier General
 
Drives: BMW F11 535i Touring
Join Date: Mar 2007
Location: Scotland, Highland Region

Posts: 4,358
iTrader: (0)

Quote:
Originally Posted by milesr3 View Post
My interpretation is that Shell's claims are less bold, being focussed more on engine cleanliness as a means of maintaining optimum performance (which is hard to dispute), whereas BP go further with their claims of extra power, economy and reduced emissions and particulates based on independent testing by MIRA. In practice both fuels exhibit the same benefits, but BP should be applauded for publishing their results.
There is quite a bit of technical data out there, but I do believe they have to be a bit careful, as they are not putting each car through the official regime and getting the kind of results which cannot be challenged. We know the difficulty with mpg claims anyway. How can you be too specific when user conditions and driving is unique?

Personally I find that steady speed driving is one of the best ways to get mpg gains, as the engine is typically running at better efficiences. Smoke levels (non DPF cars) is another way to see that the combustion is cleaner and more efficient.

HighlandPete
HighlandPete is offline  
0
Reply With Quote
      02-04-2010, 12:19 PM   #26
milesr3
Private First Class
 
Drives: 535d SE
Join Date: May 2009
Location: Suffolk, UK.

Posts: 193
iTrader: (0)

Quote:
Originally Posted by HighlandPete View Post
...but I do believe they have to be a bit careful, as they are not putting each car through the official regime and getting the kind of results which cannot be challenged.
I can understand their caution as it's undoubtedly a minefield and the least said (or claimed) the better. IMO Shell have watered the benefits of V-Power down to the point where no-one could argue it wasn't doing what they claim, but it makes it difficult to justify the price differential as it isn't claiming anything different from their regular Diesel. Shame.
milesr3 is offline  
0
Reply With Quote
      02-04-2010, 01:16 PM   #27
beemerbird
Major General
 
beemerbird's Avatar
 
Drives: Merc diesel
Join Date: Oct 2007
Location: Yorkshire

Posts: 7,953
iTrader: (0)

Garage List
Imrans graph is certainly interesting but as he points out it is not a scientific test.

I've come to the conclusion that for me there was no noticeable power difference with my 330i because either I didn't use the V power for enough fill ups, listened to an engineer who said quite rightly imo, that the engine isn't really that high on power output/state of tune and the dealer who said don't waste your money basically.

I can certainly see the 'cleaning' benefits perhaps.

Maybe I should run the S5 on 95 RON for a few tanks and see what happens............or maybe not. I don't want it to be any slower tbh, so I'll assume the V power defo. helps in my current lump. Or is it all 'auto suggestion' as has been said before on previous threads of this nature...........who knows. I want it to be true because of the cost of the friggin stuff. Bloody Government.

Maybe we need some more dynos.....would be interesting.

Edit: I've just remembered that when I test drove the M3 last year I specifically asked the sales guy whether the M3 should be run on 98 RON all the time as having the Porka T that should have 98 RON. Sales guy said to just fill up every fourth tank with super unleaded and run it on 95 RON otherwise. Personally, I didn't hold with that view for the M3.

Last edited by beemerbird; 02-04-2010 at 01:30 PM.
beemerbird is offline   England
0
Reply With Quote
      02-04-2010, 03:39 PM   #28
Ham09
Second Lieutenant
 
Drives: A sh*t box
Join Date: Nov 2009
Location: North West

Posts: 273
iTrader: (0)

Garage List
2006 335i  [0.00]
I'm using Vpower and apart from the first fill of Tesco 99, it's had nothing but. A few reasons:

a) The Shell garage round is just round the corner from me and they are pretty cheap for my area
b) There is not much in it price wise between that and the 95 ron they sell
c) I've picked a Drivers point card and you get double points on Vpower (lol yes I'm sucker for stupid loyalty points schemes - so get money off vouchers back)
d) Maybe the most importantly - I had assumed it would perform better in my car and keep it running cleaner/more efficient, so would get the best out my engine.

Even it the test results aren't that scientific they look promising and it the right direction
Ham09 is offline   United Kingdom
0
Reply With Quote
      02-04-2010, 03:52 PM   #29
NFS
Major General
 
NFS's Avatar
 
Drives: 335i m-sport LCI
Join Date: Jul 2006
Location: UK

Posts: 9,214
iTrader: (0)

Quote:
Originally Posted by creepy coupe View Post
I'm staggered you get + 28 BHP
28hp increase on a car with around 300hp is cira 8%. That sounds reasonable an in line with the results of the fifth gear test a few years back.
__________________
NFS is offline   United Kingdom
0
Reply With Quote
      02-04-2010, 04:11 PM   #30
pjs
Colonel
 
pjs's Avatar
 
Drives: F30 335d
Join Date: Oct 2008
Location: NORTH

Posts: 2,546
iTrader: (1)

Ace, I'm well happy. v power every time now Cheers Imran
pjs is online now  
0
Reply With Quote
      02-04-2010, 04:46 PM   #31
YvesD
Lamininist
 
YvesD's Avatar
 
Drives: 335i Coupe
Join Date: Apr 2008
Location: United Kingdom

Posts: 898
iTrader: (3)

Quote:
Originally Posted by pjs View Post
Ace, I'm well happy. v power every time now Cheers Imran
Me too, never use anything else.

The higher the performance/tech spec of the engine the greater the benefit. Turbo engines and tuned ones in particular love V Power.

95 is only fit for lawnmowers really.

Hang on, I run my Briggs & Stratton on 99 too !

Second thoughts, no it isnt.
YvesD is offline   United Kingdom
0
Reply With Quote
      02-04-2010, 05:01 PM   #32
HighlandPete
Brigadier General
 
Drives: BMW F11 535i Touring
Join Date: Mar 2007
Location: Scotland, Highland Region

Posts: 4,358
iTrader: (0)

I assume you guys know of the fuel testing at Thorney MotorSport.

http://www.thorneymotorsport.co.uk/t..._Results.shtml

Dyno results and graphs to go with them.

HighlandPete
HighlandPete is offline  
0
Reply With Quote
      02-04-2010, 05:11 PM   #33
YvesD
Lamininist
 
YvesD's Avatar
 
Drives: 335i Coupe
Join Date: Apr 2008
Location: United Kingdom

Posts: 898
iTrader: (3)

Quote:
Originally Posted by HighlandPete View Post
I assume you guys know of the fuel testing at Thorney MotorSport.

http://www.thorneymotorsport.co.uk/t..._Results.shtml

Dyno results and graphs to go with them.

HighlandPete
Naturally.

Thanks for the reminder though.

My old E46 M3 was so sensitive to fuel I could tell the difference between Sainsburys 97 Super and 98 Optimax as it was back then.

Cheers

Yves
YvesD is offline   United Kingdom
0
Reply With Quote
      02-04-2010, 05:22 PM   #34
beemerbird
Major General
 
beemerbird's Avatar
 
Drives: Merc diesel
Join Date: Oct 2007
Location: Yorkshire

Posts: 7,953
iTrader: (0)

Garage List
Quote:
Originally Posted by YvesD View Post
The higher the performance/tech spec of the engine the greater the benefit. Turbo engines and tuned ones in particular love V Power.
Nail on head.

That is why in some ways I wonder whether my engine seriously needs the 98 RON when you look at the state of tune of a stock M3 which has rather impressive bhp/litre. My engine in comparison is not in a high state of tune, but 98 RON is what it gets.
beemerbird is offline   England
0
Reply With Quote
      02-04-2010, 05:30 PM   #35
YvesD
Lamininist
 
YvesD's Avatar
 
Drives: 335i Coupe
Join Date: Apr 2008
Location: United Kingdom

Posts: 898
iTrader: (3)

Quote:
Originally Posted by beemerbird View Post
My engine in comparison is not in a high state of tune, but 98 RON is what it gets.
Mechanical sympathy at its best.

YvesD is offline   United Kingdom
0
Reply With Quote
      02-11-2010, 11:51 AM   #36
SiKkBaSs
325i'in it
 
SiKkBaSs's Avatar
 
Drives: E90 325i
Join Date: Jun 2008
Location: Kent

Posts: 4,404
iTrader: (2)

Garage List
2006 325i  [0.00]
Quote:
Originally Posted by TMP View Post
Dont you need to go and fill up again
Petrol rev V Diesel clatter

/that argument.
__________________
SiKkBaSs is offline   United Kingdom
0
Reply With Quote
      02-11-2010, 12:09 PM   #37
MB London
Come as you are
 
MB London's Avatar
 
Drives: F10 520d M-sport
Join Date: Mar 2009
Location: London

Posts: 1,140
iTrader: (0)

I always treat my car to the ‘good stuff’ for the first two weeks after payday and the difference is hugely noticeable.

I think Tesco’s 99 is the best juice out there.
MB London is offline   United Kingdom
0
Reply With Quote
      02-11-2010, 12:33 PM   #38
E902717
Colonel
 
E902717's Avatar
 
Drives: E91 335d M-Sport
Join Date: Sep 2008
Location: uk

Posts: 2,399
iTrader: (0)

Quote:
Originally Posted by SiKkBaSs View Post
Petrol rev V Diesel clatter

/that argument.
6cyl BMW diesels dont clatter If you do here one clatter its not the engine its the sound of the tarmac being removed by the huge amounts of torque
__________________
Car: 2011 BMW E91 335D M-Sport
Previous: 2010 BMW E70 X5 3.0D M-Sport - last seen going backwards in a hedge

E902717 is offline   England
0
Reply With Quote
      02-11-2010, 02:50 PM   #39
acerboo
Brigadier General
 
Drives: e92 335d lci
Join Date: Jul 2008
Location: kent

Posts: 3,635
iTrader: (2)

sounds to me that normal diesel is crap and we are charged through the nose for the stuff we should have in the first place, rip off britain strikes again!
acerboo is offline   England
0
Reply With Quote
      02-11-2010, 03:24 PM   #40
Matt2008
Private First Class
 
Drives: E46 M3
Join Date: Dec 2009
Location: Cambs

Posts: 176
iTrader: (0)

Garage List
Quick question... Only used BP Ultimate diesel in my car but if i wanted to try out tescos 99 octane, is it best to get my tank almost empty before trying? I usually never let my tank drop below half.
Likewise with my non BMW petrol engine which i use BP Ultimate.
__________________
Matt2008 is offline  
0
Reply With Quote
      02-11-2010, 03:31 PM   #41
a1reader
Evolve tuned...
 
Drives: E93 335i M-Sport
Join Date: Aug 2009
Location: Wilts, England

Posts: 291
iTrader: (-1)

Quote:
Originally Posted by Matt2008 View Post
Quick question... Only used BP Ultimate diesel in my car but if i wanted to try out tescos 99 octane, is it best to get my tank almost empty before trying? I usually never let my tank drop below half.
Likewise with my non BMW petrol engine which i use BP Ultimate.
Tescos 99 octane is PETROL not diesel, how would you use it to replace BP ultimate diesel???
a1reader is offline   United Kingdom
0
Reply With Quote
      02-11-2010, 03:39 PM   #42
Matt2008
Private First Class
 
Drives: E46 M3
Join Date: Dec 2009
Location: Cambs

Posts: 176
iTrader: (0)

Garage List
Quote:
Originally Posted by a1reader View Post
Tescos 99 octane is PETROL not diesel, how would you use it to replace BP ultimate diesel???
oops!
I'm used to BP ultimate in petrol or diesel.
I still have to be carefull about which pump i pick up depending on the car
So Tesco don't do any higher octane diesel?
__________________
Matt2008 is offline  
0
Reply With Quote
Reply

Bookmarks

Tags
335i, evolve, fuel, test

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
Forum Jump


All times are GMT -5. The time now is 12:34 PM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
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