Sorry if this is the wrong place to put this in but i was wondering if u guys would be able to tell me, whats going to happen after i put 89 octane in my jdm 96 spec type r? ive always put 94 (i live in canada) ever since i did the swap but by accident tonite, i ended up putting 89 becuase of some stupid old gas station. Anyways anythign i should be worried about? Like ive said again, sorry if this is the wrong forum.

 

This happened to me once when someone put 89 in my 11.6:1 CR GSR, and I just took it real easy until I could get 93 back in it. No WOT pulls, haha. Just baby it and you should be ok...

 

thank you.. i hope my motor will be okay. I filled it to half and thats when i realized i put 89. Should i fill the rest with 94? or should i just drain out the 89 and wait later to put 94?

 

You should be fine. If you want to fill it up the rest of the way with 94 and baby the car until you're almost out of gas and then go refill it with 94.

 

It will be fine. Fill the rest with premium, and toss in a bottle of octane booster if it makes you feel better.

 

looks like u live in markham...was that you last week driving on 16th Ave with JDM front and oem optional sides and rears??

 

Yes it was sir. Im always driving that way everyday to go to work.

 

I think ill just baby it till im almost empty, then fill it back for 94.

 

I have had a bad experience with high compression (12.2:1) and low octane fuel. If I did that I would go in my garage and top off with some C16.

 

I have used 89octane from time to time. Nothing bad happens...
no need to panic or worry, just don't beat the crap out of the car, but have fun too.

 

everyones saying different things! haha i am scared to be honest, but i guess ill just wait till the 89 drains.

 

Use an octane boost and no worry!!!

 

I have used 89octane on a long trip, I got the same mpg...
When gas was near $5.00 I was using 89 to save some money.
just use your head if you hear any knocking and back off the gas.
Not a big deal.

 

Im never using 89 again after this. This was only a mistake lol.

 

Good idea.

You should be fine, atleast it's not 87 lol. No WOT and soft driving till it's empty should be okay.

 

You should be fine, thats what the knock sensor is there for...

 

yea nice car...I was in the beat up blue nissan pickup. You will see me soon in my PY ITR so when u see me give me the thumbs up

 

no worries i did the same thing, just don't drive like your racing everything you see!

 

Why wouldn't you just top it off with 94?

 

I did that once on the way home from the beach. just babied it and I was in 90 degree weather. if you want throw some race gas in to top it off. see if a sunoco around you have race gas and use that to top it off

 

Like someone said, just go buy a bottle of octane booster and put it in the tank. Top it off with 94 and you should be fine.

 

will do bro! wish i had a real ITR :'(

 

once u boost the octane there wont be anything to worry about..

 

the itr runs perfectly on cheap gas, it's just less perfomant. In quebec, Premium is 91 octane and thats what i use in my itr, so 89, is mid grade here, if u top it off with 94, you end up around 91 like me, which is safe and you have nothing to worry about, if u wanna use octane booster, then don't bother putting 94 in it, just fill it up with regular fuel and use the booster to raise the whole tank, you'll be around 97 octane on regular fuel with a 8pts booster... if u got money to burn use premium and booster, but i would just ride it out, and fill it in with premium next time.

 

Aright man, thanks alot. Thanks to everyone, u guys make me feel safe/alot better haha. Sorry again if this was the wrong foumn, but thanks for the help everyone!