87 octane, oops.

[trapspeed]

Accidentally put 87 octane gas in my GS-T. How bad is this? Should I add octane booster or siphon it out? Or will it be fine?

 

[grizzly]

just turn the boost down if you hit fuel cut, if not then you should be fine

 

[talontsi01]

How much did you put in?

If you didn't put too much in, you should be fine. Just don't beat on the car until the gas is used up.

I've had 87 in mine before. Just be nice to her and she'll be fine.

 

[Eclipse96Ryder]

wouldnt be much of a problem if u were stock...but you got some mods going on so i would say turn the boost down and just try to run out of gas quick and if u hit fuel cut then i would put some octane booster in that thing

 

[1993eclipseGS]

I've done it twicewith 87, full tank

It burned so fast it was gone in a day and a half, now i put in 94 and it's last alot longer and the car is running WAY better, and feels stronger. Maybe it's just my imagination but i dont think so.

 

[Defiant]

I've made many runs to Tahoe on regular. In the summer. And I don't capeesh this "take it easy" of which you speak. No ill effects.

 

[Eclipse96Ryder]

here in AZ nobody has ne thing other then 91 octane which sux..., that was off topic but i was just kinda throwin that out there

 

[boostboyike1]

! run 87 all time and drive her like hell..Never any problems..Also runnin 14 on the boost

 

[boostboyike1]

I mean I run 87

 

[DSMeclipse4G63]

! run 87 all time and drive her like hell..Never any problems..Also runnin 14 on the boost

spoooolllll BOOOMMMM!!!

 

[heinzanova]

I've done it twicewith 87, full tank

It burned so fast it was gone in a day and a half, now i put in 94 and it's last alot longer and the car is running WAY better, and feels stronger. Maybe it's just my imagination but i dont think so.

Lucky man that synoco is cheap up there in hazleton by the Perkins....


It is amazing how the higher octane gas runs so much better, I usually use the 93 not the 94 and I see great performance... I meen I am running 15PSi on stock fuel system and never hit fuel cut.

 

[leakyfaucet]

spoooolllll BOOOMMMM!!!

Uhh... no. Your car will just pull the timing and your car will drive just fine, except it will have a lot less power.

What do you think the knock sensor is for?

 

[1993eclipseGS]

So, What if someone was to put 93 or 94 oct. in the tank but say mix it with 3 or 4 gallons of 100oct ? How would the car react to that?

 

[DSMeclipse4G63]

Uhh... no. Your car will just pull the timing and your car will drive just fine, except it will have a lot less power.

What do you think the knock sensor is for?

wow and have you heard of detonation?? with 87 octane(fast and easy burning), combined with carbon deposites and high temps= bad stuff. Granted its not gauraunteed but your engine can pull all the timing it wants, on a hot day with engine temps up youll never know...
Andrew

 

[boostedinaz]

wow and have you heard of detonation?? with 87 octane(fast and easy burning), combined with carbon deposites and high temps= bad stuff. Granted its not gauraunteed but your engine can pull all the timing it wants, on a hot day with engine temps up youll never know...
Andrew

The knock sensor will pull timming until it doesnt here any pinging or detonation. It will then VERY slowly let timming come back in unless it hears it again. If you bought an aftermarket chip and had the "octane" rating mod put in then it would just return you to full timming after the car was turned off.

Either way you will be fine. Just drive it and remember to put good gas in when you can. You drive a modern angine equiped with many monitoring devices.

Michael

 

[DSMeclipse4G63]

The knock sensor will pull timming until it doesnt here any pinging or detonation. It will then VERY slowly let timming come back in unless it hears it again. If you bought an aftermarket chip and had the "octane" rating mod put in then it would just return you to full timming after the car was turned off.

Either way you will be fine. Just drive it and remember to put good gas in when you can. You drive a modern angine equiped with many monitoring devices.

Michael

I was just stating a possibility like I said in my post above...I guess everyone thought I said it would definatley happen, when I didnt. Plus I know what happens when the knock sensor is on and so on and all that timing crap....but I would like to point you twards my timing thread in the tuning section. My timing retards to below base timing at wot and barley increases, I mean on a healthy system 9-12 then steady up to normal is what should happen.... but anyways enough about my car. Im thinking heat soaked stock sidemount.
Andrew

 

[Defiant]

So, What if someone was to put 93 or 94 oct. in the tank but say mix it with 3 or 4 gallons of 100oct ? How would the car react to that?

It used to be that mixing the higher octane with the lower would actually give you a gain in octane. I don't know if it's still true (or, if it even was when they were saying so), this was from when tetraethyl lead was first removed from motor fuels. As for the mix you suggest, I don't know if the percentages are large enough to make a difference.

 

[2fast2furious]

No, mixing doesn't do anything but create an avg depending on the blend ratios. I work for an oil company and the gas we use in the stations depends on the fuel types where we refine for the region.

 

[c5chris]

Add Torco, the only octane booster that I tried that actually works.

 

[1993eclipseGS]

Where can I get this Torco, And how much is it? I thought it I put some 100octane airplane gas in my car, And mixed it with 94 it would run alot better

 

[temfate]

Just get yourself some Toulene as discussed in the tech articles on making your own race gas... It'll boost you however many octane points you need...

 

[trapspeed]

Where can I get Torco?

 

[Defiant]

Where can I get Torco?

Tognotti's.