fueling at the pump
07-12-2004, 10:20 PM
#1
Registered User
Thread Starter
iTrader: (16)
Join Date: Jun 2004
Location: mid-atlantic/va
Posts: 3,823
Car Info: 09 xt
fueling at the pump
two questions really here: 1. has anyone noticed a difference putting in less than 91 octane in your wrx?? 2. on several occasions, the gas pump has kicked off with the auto stop, and gas has spilled out. this has never happened with any of my other cars. i guess i could slow the pumping when i hit >11 gal. but wondering what ur experiences are. It may sound dumb, but i would appreciate a few honest answers. the rest can flame on.....
07-12-2004, 10:32 PM
#2
1.) Less then 91 octane is bad for your car and should only be used in emergency situtations. using less then 91 may cause the engine to start pinging, which can cause long term damage. You will also notice decreased performance on less then premium gas.
2.) I usually let the pump sit for about 10 seconds or more before I pull it out, shaking it all the while so I don't spill any. If you are still spilling gas, then I don't know what to say.
2.) I usually let the pump sit for about 10 seconds or more before I pull it out, shaking it all the while so I don't spill any. If you are still spilling gas, then I don't know what to say.
07-12-2004, 10:40 PM
#4
Registered User
Join Date: Feb 2004
Location: The Hunted Forest
Posts: 720
Car Info: Mazda Protege '02 (Wishing protege has AWD and a H6 twin turbo)
Originally Posted by 808subaru
it spills out right b4 it cuts off, mebbe i should pump slower right at cutoff then??
Source of info:
On my previous cars and dropping the gas tank i noticed a tube that was used to let air escape when fueling up. This prevented the bubbles in the tank that would presurize when it started getting full.
I theorize that the pressure of air trapped in the top of the tank pushed the gas out of the tank becuase it had to buble to the surface so to speak. Thus it spilled.
07-12-2004, 11:04 PM
#6
Registered User
Join Date: Feb 2004
Location: The Hunted Forest
Posts: 720
Car Info: Mazda Protege '02 (Wishing protege has AWD and a H6 twin turbo)
Originally Posted by 808subaru
thanks 4 the info. it's all stock, so maybe it's defective?? it seems like an isolated case to me so far...
07-13-2004, 06:28 AM
#7
VIP Member
Join Date: Apr 2003
Location: Trying to figure out something creative to put her
Posts: 1,348
Car Info: 2005 CGM WRX Wagon
Make sure that you put the nozzle in the tank as far as it will go. That will make it stop a bit sooner and should keep it from spilling.
07-13-2004, 08:43 AM
#8
VIP Member
iTrader: (7)
Join Date: Jun 2003
Location: Funtown
Posts: 25,095
Car Info: A limousine with a chauffer
1. Never put in less than 91 Octane. It's usually only $.20 more per gallon, which is like $2 per fill up. You can afford the cost difference in $2 increments right?
2. I'm not sure on your issue. If you want, I could move this thread to 'Maintenance and Warranty" and you might get better responses there. I didn't move it yet because it's right on that line of General/Maint As for me, mine stops when it's full, and for some reason that seems to be 13.9xx gallons every time No overflows though.
2. I'm not sure on your issue. If you want, I could move this thread to 'Maintenance and Warranty" and you might get better responses there. I didn't move it yet because it's right on that line of General/Maint
As for me, mine stops when it's full, and for some reason that seems to be 13.9xx gallons every time No overflows though.
07-13-2004, 10:05 AM
#9
Registered User
iTrader: (7)
Join Date: Dec 2002
Location: Sacramento CA
Posts: 10,029
Car Info: 02 Impreza WRX sedan
Origami posted by 808subaru
1. has anyone noticed a difference putting in less than 91 octane in your wrx?
1. has anyone noticed a difference putting in less than 91 octane in your wrx?
Origami posted by Vishnu
The knock control system is active from ~2000rpm to ~6000RPM, give or take a few 100rpm based upon application/mapping. It's also active above moderate load (under boost). It is very unusual to hear audible ping within those conditions with deltadash consistently showing no drop-outs in knock correction. It may be possible that the knock correction isn't taking out enough timing do totally surpress knock but I have yet to see the detection ability of the system to be amiss.
BTW, if you try filling up a stock car with 87 octane, it will ping instantly, pull back timing, send the ignition advance multiplier well below 4 which will make the car run on its rich fuel map. For the most part, it will run ping-free. But every now and then, it will try to advance back to normal. And in doing so, it may ping audibly.
The knock control system is active from ~2000rpm to ~6000RPM, give or take a few 100rpm based upon application/mapping. It's also active above moderate load (under boost). It is very unusual to hear audible ping within those conditions with deltadash consistently showing no drop-outs in knock correction. It may be possible that the knock correction isn't taking out enough timing do totally surpress knock but I have yet to see the detection ability of the system to be amiss.
BTW, if you try filling up a stock car with 87 octane, it will ping instantly, pull back timing, send the ignition advance multiplier well below 4 which will make the car run on its rich fuel map. For the most part, it will run ping-free. But every now and then, it will try to advance back to normal. And in doing so, it may ping audibly.
--
0==WW==0
"…axles of evil…" - george w. bush
07-13-2004, 11:15 AM
#10
Registered User
Thread Starter
iTrader: (16)
Join Date: Jun 2004
Location: mid-atlantic/va
Posts: 3,823
Car Info: 09 xt
thanks for the replies. I've never actually put in less than 91 octane, it was just a question, i got what i needed from all of the great i-clubbers, thanks y'all!!!
Thread
Thread Starter
Forum
Replies
Last Post
gpatmac
Teh Politics Forum
36
01-19-2006 08:56 AM
JohnB
Stereo & Security
1
06-30-2003 12:14 PM
