Carr
Member
Registered: 1st Oct 04
Location: Leicestershire (Home) Ambleside, Lakes (Uni)
User status: Offline
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Shame there is no Diesel Optimax 
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Sam
Moderator
Premium Member
Registered: 24th Dec 99
Location: West Midlands
User status: Offline
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Turbocharged cars historically run better on higher octane fuel anyway, don't they?
Don't think it makes a lot of difference on naturally aspirated cars, certainly not performance-wise anyway, just better MPG. I have been using Optimax in my Astra (X14XE), no performance difference but better MPG.
I'm gonna start using super unleaded from another servo this month, see if I notice any difference between that and Shell's offering.
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Sam
Moderator
Premium Member
Registered: 24th Dec 99
Location: West Midlands
User status: Offline
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And by the way, I don't use 97RON fuel thinking I'm gonna get better performance out of my engine; it's a 1.4 FFS! I just want better MPG as I do a lot of driving! 
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Richie
Member
Registered: 3rd Dec 02
Location: Newport, Wales
User status: Offline
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I got a shitload of MPG out of my corsa when i filled it up with Optimax and used a +4 RON octane booster
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MoNkEy MaGiC
Member
Registered: 12th Apr 03
Location: West - London Drives: Corsa GSi
User status: Offline
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whenever i fill up, i always put in £25 worth of petrol in my Gsi
and everytime i use Optimax i always get less miles compared to normal unleaded from shell!!! but it does run smoother
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RKS
Member
Registered: 2nd Mar 04
Location: Gloucestershire UK
User status: Offline
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quote:
Originally posted by Carr
Shame there is no Diesel Optimax
BP do Ultimate diesel, alltho round our way its about 97.9p i think!!!!
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Andrew
Member
Registered: 5th May 04
Location: Skoda Octavia Estate, Ford Puma
User status: Offline
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When i start my placement in Sept, think i will give Optimax a go as i have to pass the Shell service station. It's a bit out the way at the moment so the cheap stuff will have to do. Will be handy the extra MPG as i've be doing 250 miles just to get to work and back plus if i keep my other job too that's like another 150 miles. Then there is the other few miles to Tesco and mates etc.
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chris-sri
Member
Registered: 3rd Apr 05
User status: Offline
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Well just been down to shell and handed over some hard earned for said product, reset the counter so lets see how it goes
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IntaCepta
Member
Registered: 25th Mar 02
Location: Mill Hill East, Greater London
User status: Offline
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will be looking forward to said results.
but let us know your average MPG with normal UL so we get the comparison.
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Colin
Member
Registered: 4th Apr 02
User status: Offline
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To be honest I wouldnt bother with the extra expense unless driving a turbocharged car mapped to higher ron fuel!! Ive tried it in euro and jap NA cars and noticed no difference!!
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