05 wrx fuel advice?
04 July 2005, 02:58 PM
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05 wrx fuel advice?
sorry if this has been covered...
i've got a new UK wrx (non ppp), even tho the car is set up to run on 95ron, is it still beneficial to use optimax, guy in dealership said the engine will adjust to the higher grade fuel if i used it regularly...
does anyone else notice real difference in power in a std wrx??
i've got a new UK wrx (non ppp), even tho the car is set up to run on 95ron, is it still beneficial to use optimax, guy in dealership said the engine will adjust to the higher grade fuel if i used it regularly...
does anyone else notice real difference in power in a std wrx??
04 July 2005, 03:38 PM
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Evo did a test a couple years ago on there fast fleet. All the cars were running 95ron, so they tested the cars in gear times. They then ran all the cars on Optimax for 1500 miles, then retested the cars. Every single car was faster. The Civic Type R that had just run on supermarket 95ron fuel had the biggest benefits, and all the engines saw the internals cleaner. The M coupe had spotles internals.
So yes it works. Have only used Optimax for the last 3.5 years. The only drawback is it's bloody expensive.
So yes it works. Have only used Optimax for the last 3.5 years. The only drawback is it's bloody expensive.
04 July 2005, 07:02 PM
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Originally Posted by stilover
So yes it works. Have only used Optimax for the last 3.5 years. The only drawback is it's bloody expensive.
05 July 2005, 10:44 PM
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Originally Posted by GREGGYG
If you have a new UK WRX, doesn't it say inside the petrol flap '98 ron only'?
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06 July 2005, 02:06 PM
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Sounds like you did get a non turbo flap on your car! I had an 03 WRX and now have an 03 STi and both say '98 ron' inside the fuel flap, so does the handbook, yes, look in your handbook, unless there's a printing error and that too says 95!
06 July 2005, 02:53 PM
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Originally Posted by ru'
that'll hurt your 0-60 times then! 
bugger...
06 July 2005, 03:13 PM
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I was using optimax on my 02 WRX (pretty much standard) then changed back to 95ron just to see the difference. what a difference to my fuel bills, not only is it cheaper but i am getting lots more miles out of a tank.
I know some might argue this but it applies to me, will switch back to optimax as soon as the car is mapped.
Full tank Optimax = approx 180 miles
Full tank 95ron = approx 220 miles
Cookie
I know some might argue this but it applies to me, will switch back to optimax as soon as the car is mapped.
Full tank Optimax = approx 180 miles
Full tank 95ron = approx 220 miles
Cookie
06 July 2005, 03:15 PM
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I've only recently started using Optimax in my WRX and the car is definately more responsive, especially at lower revs.
The problem is, it's miles to the nearest Shell garage and it's 96.5p/litre.
The problem is, it's miles to the nearest Shell garage and it's 96.5p/litre.
06 July 2005, 03:57 PM
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Originally Posted by cookstar
I was using optimax on my 02 WRX (pretty much standard) then changed back to 95ron just to see the difference. what a difference to my fuel bills, not only is it cheaper but i am getting lots more miles out of a tank.
I know some might argue this but it applies to me, will switch back to optimax as soon as the car is mapped.
Full tank Optimax = approx 180 miles
Full tank 95ron = approx 220 miles
Cookie
I know some might argue this but it applies to me, will switch back to optimax as soon as the car is mapped.
Full tank Optimax = approx 180 miles
Full tank 95ron = approx 220 miles
Cookie
06 July 2005, 10:26 PM
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Originally Posted by abc
Very interesting. My new WRX has PPP and my average mpg on Optimax has been about 33. (Don't know what that equates to per tank, but mid to high 300s at a guess!). However, it's still running in and hasn't been taken on any twisties properly -- yet!
Surely it's not running correctly, must be lean..!
The BEST I've had out of mine was 26mpg and that was on a 300 mile m'way trip 99% off boost at 80ish in top..!
Usually 22 mpg now ~24mpg after Ecutek..
07 July 2005, 12:20 AM
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I only use Optimax, do between 100 and 300 miles per day. I get 300 ish miles off a tank on mostly B roads and about 350 miles on the motorway. Even if it doesn't make a differance i've got a **** load of Shell Optimax points!
07 July 2005, 09:14 AM
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I look at it this way: you get out what you put in! No point on scrimping on the imp stuff like oil and fuel with a performance car, if you want to save money, don't buy a Scooby! :-)
NS04
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07 July 2005, 09:18 AM
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That is interesting, i get 140-150 miles on just £20 worth of optimax and my car is very responsive, when i got the car a month ago the guy failed to tell me about fuel quality so i put in normal unleaded and it didnt like it one bit it was missing and spluttering and just would not go so i put bp optimax in and that cleared her out but the optimax is great and THE petrol for me.
Originally Posted by cookstar
I was using optimax on my 02 WRX (pretty much standard) then changed back to 95ron just to see the difference. what a difference to my fuel bills, not only is it cheaper but i am getting lots more miles out of a tank.
I know some might argue this but it applies to me, will switch back to optimax as soon as the car is mapped.
Full tank Optimax = approx 180 miles
Full tank 95ron = approx 220 miles
Cookie
I know some might argue this but it applies to me, will switch back to optimax as soon as the car is mapped.
Full tank Optimax = approx 180 miles
Full tank 95ron = approx 220 miles
Cookie
07 July 2005, 05:22 PM
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Originally Posted by mwrx
That is interesting, i get 140-150 miles on just £20 worth of optimax and my car is very responsive, when i got the car a month ago the guy failed to tell me about fuel quality so i put in normal unleaded and it didnt like it one bit it was missing and spluttering and just would not go so i put bp optimax in and that cleared her out but the optimax is great and THE petrol for me.
NS04
08 July 2005, 07:29 PM
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My WRX MY01 refuses to run on ordinary unleaded and engine management light comes on after hard driving using this. No problems at all with Optimax and its def quicker I reckon.
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