Why did you give your mother the keys anyways? I'd NEVER let my mother drive mine.

 

Her car was in the shop and I didnt feel like getting up at 4am to take her to work. Now I will definatley get up. I put 104 race fuel today 4 gallons and it runs great now. I hope thats over with. Thanks again. Laters Mikal

 

If your tank was almost empty then just refill with Premium. No need to get the race fuel. The race fuel suggestion was so that you could raise the octane of 87 that was already in the tank.

 

Actually that is not completely correct either. Depending on conditions, yeah, 87 octane might cause a little knock; but, it is VERY unlikely that 91 octane will cause ping. If it does the ECU will adjust and there should be absolutely no problem.

 

Using 87 octane should not cause permanent damage to your engine if it is stock. Here is what happens when the ECU senses that a load of Regular gas is being used. Using 87 octane is not a cheaper way to go with a WRX. When the ECU goes to the rich map, your fuel economy will be pretty bad when it tries to prevent detonation on lousy fuel.

--
0==WW==0
"…axles of evil…" - george w. bush

 

i know if you but 92 in a saturn the car wont even turn on.

 

and cat start broke no chew wire car

 

Well the 87 octane caused the ECU to pull timing (it decreased the ignition advance multiplier), which basically causes a loss of power and also prevents knock. Now. once he gets some good octane in there and drives for a while the IAM will go back up (it ranges from like -8 to 12 or something), but that will take a while. Resetting the ECU will bring it up to its default (8) quicker than just driving w/out a reset.

So..

Ignition Advance Multiplier after bad gas which caused knock = -8

After reset = 8 (default)

After good gas with no knock for a long time = 12

Now, the numbers might be slightly off but I'm sure you get the idea.

Do a search for something like "ignition advance multiplier vishnu learning trick" for more information.

 

I am glad I can get ahold of 125 octane at the shop, it works top notch on anything

WRX Rush

 

now now there buddy.. remember not all of us are catless now.. if you have cats in place be advised....
ANYTHING OVER 100 OCTANE CAN KILL YOUR CATALAC CONVERTERS and send pieces of it through your turbo.. if you have an stock uppipe

edgar,

 

Thank the lord I dont have a catless up-pipe and soon to be turbo back exhaust. But yes thanks for the reminders for the gen'ts drivin' stock out there

WRX Rush
Austin

 

yeah or you could of just put in 1 gallon of xylene or toulene and it probably would of came out to 91

 

Can someone tell me what the hell this means?
Honestly it makes no sense to me.

"cat start broke" ????

" no chew wire car " ????