Martin959 Posted March 15, 2015 Posted March 15, 2015 Im thinking about using 95, since I will be using the car for working mainly and its quite cheaper :P Would anything wrong happen to the car if I start using 95? Thanks! :D
Exup1000 Posted March 15, 2015 Posted March 15, 2015 Is yours a uk or import model? I'e what's it mapped to run on
Steveuk260.Esq Posted March 16, 2015 Posted March 16, 2015 The only time you can run 95 in a turbo car is in emergency. And then you should try to keep the car off boost otherwise you will damage your car. 1
matmidgley Posted March 16, 2015 Posted March 16, 2015 i have always run super on mine, but i did notice the other day on the inside of the fuel flap it says to run on 95ron
aucky Posted March 16, 2015 Posted March 16, 2015 I put normal unleaded in mine 1 day from morrisons just to get to the Shell station were I fill up,all most straight away you could feel difference,it was real lumpy,a don't no if it just cause supermarkets get the **** petrol to sell it cheap.a allways use Shell,bit more expencive but can feel the dirrence in my opinion. 1
Ash007ks Posted March 16, 2015 Posted March 16, 2015 in the manual it states to use 98, the only way i was told by a mapper to run 95 is if you have it remapped for it, but you loose bhp.
jaseone Posted March 16, 2015 Posted March 16, 2015 but is the ecu clever enough to know what has been put in it?
Scoobyghost Posted March 16, 2015 Posted March 16, 2015 Because the impreza run hotter than the average car 95 Ron is less stable in the chamber. This is what causes knock or pinking. the engine picks up on this and retards the timing. (Basic picture borrowed from Google) excessive knock can cause damage. [emoji4] 1
Xander Posted March 16, 2015 Posted March 16, 2015 I run mine on 98 but it's say 95 minimum in the book. I have seen on 5th gear they did a test and am impreza had a 15bhp gain over supermarket fuel if I remember correctly. It's about £5 a tank more so got to work out if it's worth it to you. I have thought about using Shell basic fuel to see if I can feel a difference. All cars sold in the UK must run on 95 so I guess it will work but who wants to risk it for a few quid. -- I make Films and Website for people 1
Martin959 Posted March 16, 2015 Author Posted March 16, 2015 Yeah, I guess in case of emergency, is fine then... :) Believe it or not, here in Spain not every gas station has 98... just for the record if someone is coming to spain with the scooby :P 1
Scoobyghost Posted March 16, 2015 Posted March 16, 2015 I have to plan my journey around what petrol stations I'll pass and of they have high octane fuel. 1
stants Posted March 16, 2015 Posted March 16, 2015 Get it mapped for both ☺ have my vpower standard map and an emergency supermarket/95ron map incase i ever get caught short 2
Xander Posted March 16, 2015 Posted March 16, 2015 Get it mapped for both [emoji5] have my vpower standard map and an emergency supermarket/95ron map incase i ever get caught shortHow do you switch maps? Or is it use like the standard ecu that just looks at the timing depending on the fuel. -- I make Films and Website for people
stants Posted March 16, 2015 Posted March 16, 2015 I've an esl board in my ecu so if I want to change map I have to go through a process of turning the ignition on throttling up turning off and releasing the throttle pedal (i think) then the management light will flash once or twice depending on which one I want. Not used it yet as only been running the twin maps for a month and I have half a dozen Shell stations with vpower within 5 miles of Leeds City Centre
ven Posted March 16, 2015 Posted March 16, 2015 This is from my bugeye wrx uk fuel cap,so always used super,now nitro 99ron over previous 97ron No mention of unleaded................95ron
Scoobyghost Posted March 16, 2015 Posted March 16, 2015 I'll have a look in morning but I'm sure my UK classic has a sticker saying only to use super.
Xander Posted March 16, 2015 Posted March 16, 2015 I think in the U.S. you get 93 and 95 as super so we should be ok running on 95 if that's the best they get however it should be better running on 98. -- I make Films and Website for people
Scoobyghost Posted March 16, 2015 Posted March 16, 2015 The maps are made for the fuel. That's why jap imports have to be run on high octane. Jdm are mapped for it.
ven Posted March 16, 2015 Posted March 16, 2015 Yes ,iirc jap have 101ron...........maybe higher now as i am going back a good few years. Our petrol is not the best,fuel in the USA is crap at best................but boy is it a lot cheaper :( Not as cheap as Saudi though..........................19p a litre of super! 1
Xander Posted March 16, 2015 Posted March 16, 2015 Wow we all drive subarus in the wrong part of the world. They must look at us and think w are rich. But yer the yanks think 25+ mpg is very good. -- I make Films and Website for people
WideSam Posted March 17, 2015 Posted March 17, 2015 Wow we all drive subarus in the wrong part of the world. They must look at us and think w are rich. But yer the yanks think 25+ mpg is very good. I worked out my average mpg to be about 19.5 so far, 25+ would be incredible! Tesco momentum is 99RON and about the same price as other garages SUL (my local one is only 97). Worth it if you happen to be near one... I think I payed about 114.9 last time and fuel's pretty pricey around my way.
stants Posted March 17, 2015 Posted March 17, 2015 Vpower up to 119 again near me robbing tax man grrr [emoji35]
Scoobyghost Posted March 17, 2015 Posted March 17, 2015 Yeah was down to 110.9 down here but back up to 112.9 for 99 momentum.
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