I put regular unleaded 95, the manual recommends it to be good enough

 

Is that the special BP ultimate stuff? I didn't know I could use that... Hmmm

 

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ok just checked the MiTo bible.....hand book! and it say's *cough*......

for all 1.4 petrol engines....Unleaded petrol 95 RON

but since your a 1.4 turbo 155HP (right?) if you want to get the maximum power from your engine they advise unleaded petrol 98 RON.

Not bad for a chick huh! :lol:

 

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Super-impressed :thumbs:

4*

Ah 4* petrol Janitor now you're talking a language I understand. :thumbs:

 

Technically it's required for the 155 to get full power but not the 120

 

v-power only for me.

 

I usually put in the super unleaded tesco fuel because it is only a small amount more expensive and I like to believe that it may be slightly cleaner than the regular unleaded and hence will keep the engine running better...

But then again, who knows if the super unleaded pump delivers exactly the same fuel as the regular unleaded? they could easily do that to squeeze extra profit..

 

Infact I only ever put in the 98 stuff, once I get the car remapped soon i'll be asking them to make it so it runs better on that stuff.

 

You only need "super" unleaded if the car has been mapped to run on a higher octane fuel, my 230bhp Scooby is recommended and mapped at the factory to run on 95ron and has done with no problems at all, but the 265bhp Sti is mapped for 98ron or higher so thats what you need to stop pre-detonation. Top gear did a test a few years back and it made no difference to cars mapped to run on 95ron except to the owners wallet!

 

The manual states that to achieve 155BHP you need to use 98RON fuel :thumbs:

 

I'm sticking to V-power personally and if you actually compare it to normal it only works out and extra £2ish a tank. Well worth it I think!

 

Im not going to bother with 98RON with my 95bhp, I think there's little point. THat said I always use a good quality fuel, you'd never catch me filling up in morrisons!!!

 

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Fair dues Bungle... but there is a train of thought which says that it all comes from the same place anyway (granted, Shell & BP may the stick in some extra additives, but...)

Yeah I tend to agree, however I did read somewhere a long time ago something about cheap supermarket fuels.

I miss the days of running my Mercedes 190D on veggie oil

 

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Ah ha - I did wonder if anyone would pick up on the dual meaning :thumbs:

'Twas both a 'knowledge rating' and a petrol reference matey (I wonder if this chatter is technical enough..?)

Sounds pretty technical to me Janitor, but then I haven't posted 22 zillion posts at a rate of 1,000 a day, so what do I know..........

 

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My merc diesel ran happily on unleaded as I once found out

 

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Might be of interest to some of you

Tested: the best performance fuels - Car and Car-Buying News - What Car?

 

One problem with tesco 99 it is not available everywhere (not last time I looked anyway) also tesco normal made my golf turbo run like a dog. Vpower reasonably is.

 

Not surprised.



I wouldn't buy Tesco's own-brand baked beans, so why would I buy their fuel?



:lol:

 

Yep to be honest I don't use tesco stuff in my GTA and I was surprised by that article! :lol:

 

cheers everyone, i thought it was a con! just want the best for her...hmmmmm note to self, is engendering a car sexist?... i am no Jeremy Clarkson then :lol:

 

:lol::lol::lol:

 

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For the past few weeks I have been running my 155TB on either Ron97 Super Unleaded by Jet, Total & BP Super Ultimate and then running the fuel down low in the red zone....topping up with £5 V-power running it down low and then putting £40 V-power fuel in and then running on Shell V-power Ron 99

Now I don't think it is a placebo effect as the car is definately more powerful on 99RON over 97RON and it sounds slightly different...I don't know what normal unleaded would be like (RON 95), I've never put it in the car.

I will keep checking, I am pretty certain on RON 99 to turbo boost gauge stays on maximum longer, somedays I am sure I have observed that when running Ron97 fuel that either the boost gauge goes to max and comes back down quicker or it never quites makes maximum bars and stays on the one below...i have seen both of these things happen....I keep checking just it case of the placebo effect.

What we need is a rolling road print out for a 155TB for 95 unloaded, 97 Super Unleaded and 99 Very Super Leaded.

 

I didnt even know there was a 99RON, so would you guys recommend in when I get my car remapped that I get it remapped to run on that??

 

that would be your choice.... Both Shell V-Max and Tesco's Super Unleaded are 99RON...check with tesco's they have the 99RON sticker on. The downside of having your car permanently mapped to that is it is only Shell and Tesco's offer this. Although the SHell Garage at Belmont, Durham, next to the A1 I am sure doesn't sell V-power which is mad.

 

Well I always fill up at Tesco's as its just down the road from me and always seems cheapest for Super Unleaded

Well its going to need a remap so I may as well do it on 99RON.