which is best as i am having remap in future. any1 noticed any diference an which is recommended

 

Cant notice the difference between these two really... I use both, but mostly tesco's 99. I'm running a remap on my import Classic Sti (Apexi FC/Ecu). Optimax maybe has the edge as seems a tiny bit smoother - but only very marginally. See what your tuner says and is happy with you using after the remap.

 

i will be using jgm in the future but i thought with tesco being a higher ron rating it may possibly put out more power. jgm will know best but i always used tescos

 

https://www.scoobynet.com/scoobynet-...esco-99-a.html

 

thanks for that mate it seems the same then but can mappers get more power out of a certain fuel than the other u think

 

I doubt theres a noticeable difference between vpower and tesco, both 99 ron. I stand to be corrected by a mapper if there is a difference

 

i thought v power was 98 ron that i heard. thats why i always have used tescos but with shell being a direct fuel supplier i can see them making better quality fuel an might reset my ecu to learn on this few until my remap

 

which is the easiest to get hold of for you ?
Id go with which is easier to buy, we struggle to get v power around my way so its 99 all day.

 

read the last post in the link, including quote

 

i had mine remapped on Tesco, mainly as its easier for me to get hold of, usually a tiny bit cheaper, plus clubcard points!

But as stated, there prbably isnt anything in them anyways!

 

at the mo the tescos is actually dearer than shell at the min where i am. shell is right around corner but tescos is as i go to work but sometimes feel ripped off like some days it looks like 10 pounds worth looks like 5 then other days it different. just get feeling sometimes we only getting 5 litre for 10 pounds. i want to fill measuring jug up but then id look a tw*t lol

 

i used v power from a service station and im sure it said 100 ron is that right i normally use tesco 99 super anyway.

 

Legacytt v-power isn't 100 ron (shame).

It is 'more or less 99 ron' as for Tesco 99 'its more or less' the same. If you have your car mapped for Shell v-power you can also use Tesco 99 with no problems (make sure it is 99 as they also supply SUL97 ron). As said previously use whichever is easiest to get near you or indeed on your journey. Worth keeping some octane booster in your car just in case you get stranded and have to use SUL, but don't use BP Ultimate

 

i never use the bp ultimate. there right rip offs anyway. there unleaded is 1p less than tescos super near me

 

whats wrong with BP?

 

My 98 classics mapped on Bp ultimate with 440s, sports cat, Vf34, walboro, etc etc an only made 289bhp and 270lbs of torque. Various tuners have described this output as modest! an having looked at similar specs of cars that have been mapped on V power or tescos and their figures im afraid their right...... Ive got magnex headers an a kakumei uppipe to go on an ill be using V power or tescos for the next map. Tuners dont seem to rate Bp ultimate I choose it because I thought all brands or super type petrol were the similar. Plus the fact my closest garage does Bp ultimate

 

ok m8 cheers, just wondered tho because i have a bp closer than shell and cars is getting a remap soon but i think ill stay with shell now

 

I always run on Shell V-Power. Great stuff.
I don't think it's all about Ron though either, after all Shell don't even advertise there Ron levels, different company's use different additives/chemicals etc and for this I think that Shell is better than any Tesco fuel.

 

tesco is supermarket stuff an thinkin of changing to shell. is some1 made 105 ron for eg does any1 think a remap on this will give even more bhp

 

BP Ultimate can cause knock and you really don't want that! Many of the mappers on here will advise not to use BP Ultimate. As for a higher rated fuel it's BP 102 your probably thinking of. There aren't that many forecourts that stock the stuff so you would need to plan your journeys very carefully!! Not only is it hard to find I think it's over £2 a litre

 

I second that. I heard that its as much about the chemicals used as the RON. I only use tescos if I cant get to a shell.

 

yea i suppose higher ron will be dearer an not worth driving for. went to isle of man 3 yr ago for tt an the forcourts were normal price but in the paddocks they had to pay for fuel at a pump. it was 1.50p a litre an that was then. must of been a high ron grade in the bikes