Wrong gasoline need advice.

KratikosG37 · 07-03-2014, 09:31 PM

87 octane fuel by mistake.

Build

Stock block
600cc
GTM Twin Turbo kit
ASR tune @ 8 psi for 93 octane using ECM flash.

Question

What's the damage if I run it at half a tank before mixing it with 93 octane? Would call my tuner, but little embarrassed about it.

90 ST · 07-03-2014, 09:47 PM

I would dump in a couple bottles of octane booster and take it easy on the gas until you can fill up at least a 1/2 tank of 91+ then I would still take it easy until that tank was gone.

KratikosG37 · 07-03-2014, 09:58 PM

Dentation is my biggest worry. I've read countless post about other people making the mistake, but nothing about VQ/VHR/DE engines with a ECM flash.

brancky3 · 07-03-2014, 10:01 PM

Quote:

Originally Posted by KratikosG37

Dentation is my biggest worry. I've read countless post about other people making the mistake, but nothing about VQ/VHR/DE engines with a ECM flash.

Honestly (assuming you're not going to drain it) if you stay out of boost you'll probably be fine. Don't waste your money on octane booster, one bottle normally raises it like 0.1 octane, you'd need 30 bottles to get it to 90 octane. Even mixing half tank with 93 wouldn't make a huge difference.

Ps call your tuner to make sure. Nothing to be embarrassed about, it's not like you put diesel in!

KratikosG37 · 07-03-2014, 10:08 PM

Quote:

Originally Posted by brancky3

Honestly (assuming you're not going to drain it) if you stay out of boost you'll probably be fine. Don't waste your money on octane booster, one bottle normally raises it like 0.1 octane, you'd need 30 bottles to get it to 90 octane. Even mixing half tank with 93 wouldn't make a huge difference.

Ps call your tuner to make sure. Nothing to be embarrassed about, it's not like you put diesel in!

Yea that's what I read about boosters too. Half of tank of 93 wouldn't make a different?

I know GTM tune there's cars at 91 only because it's the only thing available in CA.

I'll babe it while having my fingers cross, and yea guess I'll call my tuner.

Staples · 07-03-2014, 10:06 PM

If you can't empty the tank manually then I would see if any of your local performance shops carry "Torco Accelerator". It's the only octane booster I have seen work very well and 24-32oz should bring your octane up enough to drive it like you stole it.

Only downside, it's not cheap. It's about 20-$24 for a bottle which is 32oz. It works great though.

KratikosG37 · 07-03-2014, 10:11 PM

Quote:

Originally Posted by Staples

If you can't empty the tank manually then I would see if any of your local performance shops carry "Torco Accelerator". It's the only octane booster I have seen work very well and 24-32oz should bring your octane up enough to drive it without any problems.

Only downside, it's not cheap. It's about 20-$24 for a bottle which is 32oz.

Rather keep it under 3k rmp and just top it back with 93. Only drive it 2 hours a week, but really feel like doing a road trip just to empty. No boost makes Kratikos a dull boy.

DEpointfive0 · 07-04-2014, 09:35 AM

Quote:

Originally Posted by KratikosG37

Rather keep it under 3k rmp and just top it back with 93. Only drive it 2 hours a week, but really feel like doing a road trip just to empty. No boost makes Kratikos a dull boy.

You'd rather siphon off the gas or go on a road trip than buy a $20 bottle of something?

You must have spent $20-40k on your car... $20 surely can't hurt too much.

And have you siphoned gas? I have. Most (I think all) modern cars have built in anti-siphon tubes, so you have to use a tiny hose to get gas out. IMO not worth the time.

KratikosG37 · 07-04-2014, 12:57 PM

Quote:

Originally Posted by DEpointfive0

You'd rather siphon off the gas or go on a road trip than buy a $20 bottle of something?

You must have spent $20-40k on your car... $20 surely can't hurt too much.

And have you siphoned gas? I have. Most (I think all) modern cars have built in anti-siphon tubes, so you have to use a tiny hose to get gas out. IMO not worth the time.

I purchased 104 octane booster, it's treats 25 gallons. Now I have 91ish octane instead of 87.

Yes I can remove the driver seat for the lid, but I'll need to find a pump. I'm not going to spend all day using a small hand pump. May have to look online, and tbh don't think it's that serious after using the booster, and grandma driving to empty.

SouthArk370Z · 07-03-2014, 10:08 PM

I'd siphon out as much as I could and then gently drive to the gas station for a fill up. Give it a few minutes of gentle driving to clear any low-octane gas from the system and you should be OK. Might want to wait until the next fill up before going WOT.

KaienZ34 · 07-03-2014, 10:26 PM

I've got a hose and have siphoned gas before.

KratikosG37 · 07-03-2014, 10:44 PM

Quote:

Originally Posted by KaienZ34

I've got a hose and have siphoned gas before.

Got a nissan Titan that would take the fuel off its hands.

Let me know when you're in the area.

synolimit · 07-04-2014, 02:40 AM

You can't hurt it if you don't go wot. You can run to redline with no boost and stay in closed loop and will be fine. Just go for a long drive or take it easy for a few days. It's not a big deal. Even if you do boost or go into open loop (no idea why you'd risk it) you still have a knock sensor for a reason. I doubt you'd be retarded and punch on purpose so for a second your knock sensor will do its job. Running a gear to redline on the other hand, I wouldn't trust it that much.

axmea? · 07-04-2014, 03:38 AM

I agree with siphoning it. Makes total sense and not have to drive with low octane gas. Since you brought it up, what's the rest of the story? As in why and how did this happen?

KratikosG37 · 07-04-2014, 06:57 AM

Quote:

Originally Posted by axmea?

I agree with siphoning it. Makes total sense and not have to drive with low octane gas. Since you brought it up, what's the rest of the story? As in why and how did this happen?

Thanks for the advice guys, and happy 4th to all.

The story was simple. I drive 4 other vehicle that use 87, and 1 that's driven 2 days a week that use 93. Soon as I realize it was 87 and not 93 it was filled to the top. Mistakes happen and I'm a dumbass for not taking the time to pick proper fuel.

I'll just babe it for a few weeks and move on with my life. People have already admitted the same mistake and they're we're fine.

Quote:

Originally Posted by JARblue

Siphoning is easy and the most logical option IMO

Kaien was nice enough to offer or any competent shop could do this for you

Yes I want to siphon, but I don't have the tools. If I can covert 87 to 93 by transferring it to my other vehicles I'd be more at eases.

Game plan.

Filler 1/2 way with 93, and never go over 3k RMP till then.

07-03-2014, 09:31 PM	#1 (permalink)
KratikosG37 Enthusiast Member Join Date: Jun 2014 Location: New Orleans, LA Posts: 273 Drives: 09 TT Wrapped G37 Rep Power: 11	Wrong gasoline need advice. 87 octane fuel by mistake. Build Stock block 600cc GTM Twin Turbo kit ASR tune @ 8 psi for 93 octane using ECM flash. Question What's the damage if I run it at half a tank before mixing it with 93 octane? Would call my tuner, but little embarrassed about it. __________________ KratikosG37 Build Log http://www.myg37.com/forums/build-th...ml#post3888739

07-03-2014, 09:47 PM	#2 (permalink)
90 ST A True Z Fanatic Join Date: May 2010 Location: Calgary Posts: 1,861 Drives: 90 and 15 GMC Sierra Rep Power: 421	I would dump in a couple bottles of octane booster and take it easy on the gas until you can fill up at least a 1/2 tank of 91+ then I would still take it easy until that tank was gone. SterlingDrive likes this.

07-03-2014, 09:58 PM	#3 (permalink)
KratikosG37 Enthusiast Member Join Date: Jun 2014 Location: New Orleans, LA Posts: 273 Drives: 09 TT Wrapped G37 Rep Power: 11	Dentation is my biggest worry. I've read countless post about other people making the mistake, but nothing about VQ/VHR/DE engines with a ECM flash. __________________ KratikosG37 Build Log http://www.myg37.com/forums/build-th...ml#post3888739

07-03-2014, 10:06 PM	#6 (permalink)
Staples Track Member Join Date: Sep 2010 Location: Baltimore, MD Posts: 546 Drives: '08 Infiniti G37s Rep Power: 16	If you can't empty the tank manually then I would see if any of your local performance shops carry "Torco Accelerator". It's the only octane booster I have seen work very well and 24-32oz should bring your octane up enough to drive it like you stole it. Only downside, it's not cheap. It's about 20-$24 for a bottle which is 32oz. It works great though. DEpointfive0 likes this. __________________ '08 Infiniti G37s - Forced Induction Fed Last edited by Staples; 07-03-2014 at 10:11 PM.

07-03-2014, 10:08 PM	#10 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	I'd siphon out as much as I could and then gently drive to the gas station for a fill up. Give it a few minutes of gentle driving to clear any low-octane gas from the system and you should be OK. Might want to wait until the next fill up before going WOT. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

07-03-2014, 10:26 PM	#11 (permalink)
KaienZ34 A True Z Fanatic Join Date: Oct 2009 Location: LA. not L.a. Posts: 21,652 Drives: Z34 Tour/Sport Rep Power: 178	I've got a hose and have siphoned gas before. JARblue likes this. __________________ *"These Violent Delights Have Violent Ends"* http://www.the370z.com/members/kaienz34-albums-z34.html

07-04-2014, 02:40 AM	#13 (permalink)
synolimit A True Z Fanatic Join Date: May 2013 Location: Columbus, OH Posts: 5,051 Drives: 2013 Silver 370z Rep Power: 3389	You can't hurt it if you don't go wot. You can run to redline with no boost and stay in closed loop and will be fine. Just go for a long drive or take it easy for a few days. It's not a big deal. Even if you do boost or go into open loop (no idea why you'd risk it) you still have a knock sensor for a reason. I doubt you'd be retarded and punch on purpose so for a second your knock sensor will do its job. Running a gear to redline on the other hand, I wouldn't trust it that much. __________________ 13 370z-

07-04-2014, 03:38 AM	#14 (permalink)
axmea? A True Z Fanatic Join Date: Apr 2012 Location: SoCal Posts: 6,236 Drives: WELL ZED PW 6MT Rep Power: 53241	I agree with siphoning it. Makes total sense and not have to drive with low octane gas. Since you brought it up, what's the rest of the story? As in why and how did this happen? __________________ >MyZ's Album< NISMO Convert/ECUTEK/Takeda CAI/F.I. HFC NR CB Carbon/F.I. 34 Row Oil Cooler/4.08 Final Drive /Powertrix+Swifts/Hotchkis/SPL/Whiteline/TWM/Zoom Engineering/EVO-R/AeroJacket Vented CF Fenders + CF Spoiler/Avant Garde-WORK/NST/Morimoto Halo/STi Clear Lenses/Carbon Signal Automotive/RJM Performance/ZSpeed Clutch Flywheel CSC delete

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