95 vs 99 ron - Worth the extra cost

[Ads22]

Ive been looking into how to improve the MPG since discovering that the GTi is quite sensitive to fuel brands and types. Ive managed to hit 34 average on a long with mixed roads. I found on supermarket fuel is runs like crap compared to Shell, BP ect unsurprisingly. So ive heard, the AXX engine was designed to run on 99 ron fuel. My car mainly does short journeys but does anyone use exclusively higher octane fuel? If so what brand and is it worth the extra cost over 95ron.

[neilw]

I managed a 40mpg run on V-Power, on a 35mile trip on a quiet motorway. Getting rid of the pre-cat made a significant difference.

The engines are supposed to have 98, so I normally stick with that, (Or Esso 97) sometimes.

[willni]

I only use 99 BP Ultimate, just all round better for the engine don't do long miles in it so can't comment on milage but in my 1.4 beater I get better mpg and more miles from 99 vs 95 about 80 extra miles a tank.

Although I think the pumps affect fuel price, I have 2 fuel pumps I only go to because any of the others charge me £7 extra...not even joking 10 people have said to exact same to me about the same pumps

[f00glee]

Even before having mine stage 1 mapped (now requires 99RON exclusively). I only ever used V power or tesco momentum 99. BP ultimate is 97, not 99.

I think the consensus is that it makes some difference in terms of MPG even on a std map so you may break even with cost. Other benefits of cleaning agents etc play a factor too.

Now I'm mapped and pre cat out, I regularly see 45 mpg on a 15 mile trip up the A10 near Cambridge (sat at 50 mph). Long term average is approaching 35mpg and an 80mph motorway run for any kind of distance returns ~38mpg. Pretty happy with these numbers 

[Lewo]

I thought BP ultimate was 97?

[DavGTI]

Yeah BP ultimate is 97ron. I'm from Northern Ireland and I'm pretty confident 97 Ron is the highest we can get over here.

[richtung]

For those who are Costco Members, the Costco Fuel Stations now have 99 RON Premium Unleaded fuel.

I believe this is the same stuff as the Tesco 99 Ron Momentum.

The cost is about £1.17 a litres (as of Monday 11th Sept) which is roughly the same as normal unleaded from regular stations.

Hope this helps.

Rich

[willni]

BP ranges between 97-99 they advertise as 97, so they can't get done by trading standards if it's less


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[pudding]

Even before having mine stage 1 mapped (now requires 99RON exclusively). I only ever used V power or tesco momentum 99. BP ultimate is 97, not 99.

I think the consensus is that it makes some difference in terms of MPG even on a std map so you may break even with cost. Other benefits of cleaning agents etc play a factor too.

Now I'm mapped and pre cat out, I regularly see 45 mpg on a 15 mile trip up the A10 near Cambridge (sat at 50 mph). Long term average is approaching 35mpg and an 80mph motorway run for any kind of distance returns ~38mpg. Pretty happy with these numbers 

Is your map really 99 specific?  Must have a lot of timing!  I can use 95 on my stage 1 tune no probs and have done many times

Good mpg.  I never drive slow enough to see anything above 30 on the short term average, but my long term average is hanging around 31mpg at the moment.  Was 27 before I replaced the cam sensor 

[shoaybmakda]

Standard car here bar the intake and cat back - only use momentum from Tesco.

Was 1.17p per litre as of last Sunday (Tesco Hamilton/wigston in Leicester) so not much more expensive than standard petrol. It’s recommended for a reason I guess so I just stick with it.

The mrs mini on the other hand gets Tesco’s finest standard diesel lol

[PatchySan]

For those who are Costco Members, the Costco Fuel Stations now have 99 RON Premium Unleaded fuel.

I believe this is the same stuff as the Tesco 99 Ron Momentum.

The cost is about £1.17 a litres (as of Monday 11th Sept) which is roughly the same as normal unleaded from regular stations.

Hope this helps.

Rich

Wow that's gone up quite a bit since I last filled up on the 1st Sept (£1.12) for Super Unleaded at Costco! Must have been the crazy weather in the Americas which is driving up oil prices.

UPDATE: Decided to pop by into my local Costco for a price check and fill up, it has gone up but by a penny! £1.13 for Super Unleaded 99 RON

[MIJ_JAGGER]

Shell V-power nitro+-x for me at £1.30 I think it was last week
Received my reward voucher for £8 which helps

[dronners]

i use v power since its the only premium fuel in town really otherwise id use tesco momentum its always a lot cheaper than shell

[Leco_GTI]

V-Power £1.34 last Wednesday in West London so I just put regular fuel this time. I always use V-Power since I bought the car 8 months ago.

I had the pre-cat removed a few weeks ago but I didn't notice any improvement in fuel consumption.

[TheBALDpuma]

I've got a Pirelli Edition and I run both and don't see a lot of difference in efficiency, or performance using different fuels.  It is mapped to run on 98/99 but runs fine on 99, so I expect there is a difference in performance but day to day it isn't noticable.  As for economy I expect it does make a small difference too but it's masked by other factors that it's not noticable (tempreture, driving conditions, traffic etc.)

I do use V power maybe one in 3 or 4 tanks for the cleaning benefits though.