Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!
hello all,run my cup mainly on super but i dont go outa my way for it.if theres none localy i bang in the 95 then off i go.Im a tech at subaru and can say on scoobys it will make a difference as the ecu will r****d the ignition timing to compensate for the loss of octain then reset itself when i notices 98.as for my cup i dont get proformance of super or extra milage(slight)but its bloody cheaper.try 2 tanks of 95 -2tanks98 then 2of 95 then try bp ultimate 99 -youll notice the difference then.
run what you can but id not recomend bottles of booster unless full tank.have fun
It won't make any difference Suburus and other turbo cars it does matter as they have boost and high CR's etc but the 172 engine isn't that higly tunned or running high engine compression ratios.
Some people do say it make a MPG difference or it better running and more powerful at low RPM though.
I've run mine almost exclusively on Optimax since day one...when I've been caught out and had to use 95, it stutters, coughs, and is a pain in slow moving traffic.
NO WAY if i fill mine with Morrisons syrup it misses pops n farts, Optimax makes it run silk every time, well worth it. Oh so why does it reccomend 98 on the filler cap?
Sainsburys Super is only 2p more per litre and many regard it as being on a par with Optitat.
I can honestly say that my car does run more smoothly on the Sainsburys stuff but I don't think any performance increase would be noticeable.
Still, it can't do any harm.
Unless the map in the ecu is for 97/98 ron, then there wil be no benifit it putting SUL in a car that normally runs 95 ron. The increase in power on higher octane fuels comes from them having a higher flame front control, therefore allowing the mapper to increase the ignition to higher levels with less chance of det.
i run my scooby one tesco's sh*t a few times as optimax is a 15 min drive away an all i gotta say is tesco is crap my car was missing an did a lot less miles. Were as optimax the car pulled like a train an was so much smoother
I've run mine almost exclusively on Optimax since day one...when I've been caught out and had to use 95, it stutters, coughs, and is a pain in slow moving traffic.