PPPRob

Should I avoid it like the plague or does it actually do what it says on the tin???

04 sti PPP if you need to know that.

Cheers

briforbes

Optimax has been tested and found to allow more ignition advance to be run when tuning a car than Tesco 99, however Tesco's offering is still perfectly adequate for your car.

jonjo

My car was mapped on optimax so thats what i stick to + i dont trust supermarket fuel anyhow


Joe.....

WRX Blues

Run mine on it with no problems - JDM STi8 with Ecutek remap to 350bhp.

PPPRob

I currently use optimax everytime but there are advantages for me by using the tesco stuff. It is a tad cheaper in my area but the main advantage is that there is a tesco within a mile of me and its also on my way to and from work and then theres the clubcard points!!!!!!!

BLACK V5

So do you think tesco make their own fuel?

Moley

iTrader: (9)

Most people on here will have an opinion of what fuel is best.

The best way to check which suits your car best is by TRYING it, not by reading it in a magazine or on a forum.

FWIW i do notice a difference (better) when i run my import WRX on Tesco 99.

jonjo

I really dont know mate...i just see supermarkest cheaper and think to myself why dont the mainstream garages compete with that??.......there must be a reason behind it.......like i say though i have not got the foggiest....

C2forWRX

im going to start using it. justifiying the journey and the 3p a litre more isnt worth it when there is a tesco garage/little shop thing 0.4 miles from my drive. + the whole clubcard thing. still going to try and give her a full tank of opti every month or so if i pass one.

jameswrx

iTrader: (4)

Maybe it's some form of loss leader? ie all the Tesco petrol stations are near a store or contain a mini store. Go for petrol, "I know, I'll pop to tesco to get something"... end up buying more than you needed.. profit on petrol.. bugger all, but got you into the store.

Perhaps?

ricardo

I guess you are suggesting that the Tesco 99 is made by one of the other big companies... they don't make their own fuel but it isn't from Shell, BP, Esso or Texaco either:
http://www.greenergy.com

It has been reported on here that some tuners have achieved more advance on the Tesco 99, while it has also been reported that Optimax allows more advance in the map.

nathanb

iTrader: (1)

Does optimax clean your engine when it passes through or is it just for an extra burst of power?

struv

iv tried both uk my99 (standard exept cat back magnex and kn panel filter and the resonator under the wing removed ) and mine feels smoother if a little lethargic on optimax and a little more sprightly through the gears with tesco but this is just by my **** dyno so nothing to back it up .i get 240 ish to a tank of tesco,s and im half way through a tank of optimax but its looking similar i personaly think the ecu has retarded the ignition a tad for the optimax thats how it feels and ill be resetting after my next fill up at tesco,s

N*UFO

I use tesco 99 when i can, as my car seems to pull much smoother than with optimax, however both fuels are much better than any other sul i have tried (03stippp)

richie001

iTrader: (3)

i wish i could get some can't get any in gloucestershire

Ninnybobs

Just my luck......... got a Tesco garage about 400 yards from home and my scoob HATES IT

Martin

[Davey]

It all comes from the same place

struv

yer rite davey mine comes from 400 yards away from ninnybobs

[Davey]

I am more refering to local areas.. there are only a hand full of depots in the country..

Anders_WR1

iTrader: (8)

My WR1 is happier on Tesco 99. I wish Fifth Gear had included the Tesco 99 in their tests as I'm sure my car has more torque running on it rather than Optimax.

Anders

[Davey]

What makes you say that?

ricardo

Under the desert ?

Nearly true - 5% of the Tesco 99 comes from sugar beet.

robsw

Does each refinary produce the same range of grades, 95, 97, 98, 99 ron?


FWIW personally I have tried running my fuel low, filling up a particular brand of SUL, resetting the ecu, and test driving.

My findings, not a lot of difference between optimax (98 ron), and esso supreme (97 ron). I would however say that optimax has a slight edge. But on tesco (99 ron) I did notice a significantly faster pickup in gears, so I would guess better torque with tesco 99.

Unfortunately my nearest tesco selling the 99 ron is too far out the way for me to use. So I use the supreme mostly, and optimax now and then, but only when convenient.

My car is a standard MY93 import saloon, accept for induction and centre back exhaust.

Robin.

jonjo

My car was mapped on optimax (ive got an autronics ecu)...im wondering as im going to the pod on sunday weather i should try tesco 99 witha a dash of NF

All these different reports are confusing me

Joe.....

Ninnybobs

My car has run on Optimax for years very happily, with very little knocklink activity. I tried 5-6 tanks of 99ron and found Knocklink becoming very active.

Back to Optimax and back to normal

Very Strange

Martin

Houghton

iTrader: (1)

Mine's being mapped tomorrow on Tesco 99 only. Current map is on Optimax + a bottle of Millers o/b. I've been using Tesco's 99, whenever possible, since it first appeared and find very little difference with Optimax + Millers. Knocklink activity is similar.

We'll see tomorrow what the difference is

theotherphil

My car was mapped for Optimax but it runs significantly better on Tesco 99. Much more low down pull and better pickup through the gears. I'm getting another remap next tuesday and it'll be with Tesco 99 even if I have to carry a few cans up to scotland with me!

Nick_Cat

iTrader: (5)

Winchester was one of the first Tesco stores to get the 99Ron and I used it for about 4 month nonstop. However, to the end of this period my car, a my uk turbo, started to feel 'not right' but I put it down to needing a major service. This feeling continued after the service and then I heard about other people who'd reported similar things. Filled up with Optimax and after about half the tank I could feel that the car was running more smoother and was generally happier. I think the Tesco 99 gave a more raw power.

As said, though in the end it's what suits your car.

Nick

Aztec Performance Ltd

iTrader: (234)

Mine is mapped for Optimax+OB too and I have no extra KL activity with Tesco99

cong

ricardo is right 99 ron means 99 ron and will help with timing they can not call it 99 ron unless it has been tested, higher ron will always help