Nissan 370Z Forum  

Post Sandy gas quality

After a long search and an even longer wait, I finally found some gas for my z at*a local gas station. *The brand of gas I cannot actually recall, but

Go Back   Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain


Like Tree2Likes
  • 2 Post By ChrisSlicks

Reply
 
LinkBack Thread Tools Display Modes
Old 11-09-2012, 05:10 PM   #1 (permalink)
Base Member
 
Join Date: Dec 2008
Location: new york
Posts: 100
Drives: 07 civic
Rep Power: 17
igota21incher is on a distinguished road
Exclamation Post Sandy gas quality

After a long search and an even longer wait, I finally found some gas for my z at*a local gas station. *The brand of gas I cannot actually recall, but was definitely not a big chain like sonoco, which I usually use. I told them to fill me up with 91. Shortly after the trip home, my SEL turned on. I immediately checked my gas cap to make sure everything was tightened properly, drove around for a little bit, the light was still on. *The next day I turned on my car, warmed her up for a good 5 min and noticed an unusually high idle rpm. With the car warmed up, the tach read 1000-1100. * This worried me, so I took the car to autozone to check the SEL code. Came back to the dreaded p0300 aka multiple random misfire. My father mentioned earlier that no named brand gasoline companies sometimes dilute their gas with water. This suspicion was confirmed by the gm at autozone. So I purchased some injector cleaner to help remedy the problem.*

This message goes out both as a WARNING and a PLEAto the z community to help diagnose my problem. Keep in mind that I have installed gen 3 intakes along with motordyne exhaust. Untuned. This never threw a SEL for the 6 months I had these parts on. Any comments on what I should do to trouble shoot and or resolve this problem will be appreciated.
Thanks!
igota21incher is offline   Reply With Quote
Old 11-09-2012, 05:16 PM   #2 (permalink)
Track Member
 
NissanGuy23's Avatar
 
Join Date: Oct 2011
Location: West Chester, PA
Age: 36
Posts: 752
Drives: 09 370Z NISMO PG 6MT
Rep Power: 15
NissanGuy23 is just really niceNissanGuy23 is just really niceNissanGuy23 is just really niceNissanGuy23 is just really nice
Default

Looks like i will keep sticking with my Sunoco 93...
NissanGuy23 is offline   Reply With Quote
Old 11-09-2012, 05:23 PM   #3 (permalink)
A True Z Fanatic
 
ChrisSlicks's Avatar
 
Join Date: Mar 2009
Location: North East
Posts: 6,203
Drives: 09 370Z Sport M6
Rep Power: 653
ChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond repute
Default

The cheap stations don't deliberately dilute there gas with water (that rumor is as old as gasoline itself) but when the underground storage tanks get old and rusty then water can seep in and mix with the gas. Gasoline is lighter than water so the majority of the water sinks to the bottom of the storage tank, but when supplies run low you are getting stuff from "the bottom of the barrel" so to speak.

Add some stabilizer to the tank top off with some more gas and burn it up and you should be fine.
IDZRVIT and SouthArk370Z like this.
__________________
Hotchkis ARB | Stillen CAI | Art Pipes | Berk CBE | Stillen AP Racing Brakes | AE Performance Oil Cooler | BC Racing ER Coilovers | Doran Control Arms
ChrisSlicks is offline   Reply With Quote
Old 11-09-2012, 05:30 PM   #4 (permalink)
Base Member
 
Join Date: Dec 2008
Location: new york
Posts: 100
Drives: 07 civic
Rep Power: 17
igota21incher is on a distinguished road
Default

Quote:
Originally Posted by ChrisSlicks View Post
The cheap stations don't deliberately dilute there gas with water (that rumor is as old as gasoline itself) but when the underground storage tanks get old and rusty then water can seep in and mix with the gas. Gasoline is lighter than water so the majority of the water sinks to the bottom of the storage tank, but when supplies run low you are getting stuff from "the bottom of the barrel" so to speak.

Add some stabilizer to the tank top off with some more gas and burn it up and you should be fine.
Cool, thanks for input.
Anyone else have similar issues?
I forgot to mention that this gas probably didn't have ethanol additive since NYS governed abolished requirement for faster gas distribution post-hurricane.
igota21incher is offline   Reply With Quote
Old 11-11-2012, 12:15 AM   #5 (permalink)
Base Member
 
Join Date: Jun 2012
Location: earth
Posts: 18
Drives: car
Rep Power: 13
captain1 is on a distinguished road
Default

mixed 2 liquids with different densities? woodoo physics?
captain1 is offline   Reply With Quote
Old 11-11-2012, 02:11 PM   #6 (permalink)
Base Member
 
Z-Fighter's Avatar
 
Join Date: Oct 2012
Location: In front of you
Posts: 19
Drives: 2010 NISMO
Rep Power: 13
Z-Fighter is on a distinguished road
Default

Water and gas wont mix, so you cant dilute as two layers are formed when combined.
Gas = nonpolar hydrocarbons
Water = polar molecule
Z-Fighter is offline   Reply With Quote
Old 11-11-2012, 06:29 PM   #7 (permalink)
Base Member
 
Join Date: Dec 2008
Location: new york
Posts: 100
Drives: 07 civic
Rep Power: 17
igota21incher is on a distinguished road
Default

Guys, thanks for the chemistry and physics lessons (as if my bioscience major didn't teach me enough of that), but what could be the source of my unusually high idle rpm and SEL. I thinks it's more than a coincidence that the light went on after refueling...
igota21incher is offline   Reply With Quote
Old 11-11-2012, 11:12 PM   #8 (permalink)
A True Z Fanatic
 
ChrisSlicks's Avatar
 
Join Date: Mar 2009
Location: North East
Posts: 6,203
Drives: 09 370Z Sport M6
Rep Power: 653
ChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond repute
Default

The high idle is a result of the CEL. Certain CEL's put the engine into a failsafe mode with high idle and restricted timing. You can reset the CEL and you might be good for a little while, check for any exhaust leaks near the cats that might throw off O2 sensor readings.

I had similar issues after installing the Stillen G3's in combination with high-flow cats and cat-back exhaust. Once I got a tune everything was good.
__________________
Hotchkis ARB | Stillen CAI | Art Pipes | Berk CBE | Stillen AP Racing Brakes | AE Performance Oil Cooler | BC Racing ER Coilovers | Doran Control Arms
ChrisSlicks is offline   Reply With Quote
Old 11-11-2012, 11:19 PM   #9 (permalink)
Base Member
 
Join Date: Dec 2008
Location: new york
Posts: 100
Drives: 07 civic
Rep Power: 17
igota21incher is on a distinguished road
Default

Does nobody think this is a result of bad fuel? Lol
igota21incher is offline   Reply With Quote
Old 11-11-2012, 11:34 PM   #10 (permalink)
A True Z Fanatic
 
ChrisSlicks's Avatar
 
Join Date: Mar 2009
Location: North East
Posts: 6,203
Drives: 09 370Z Sport M6
Rep Power: 653
ChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond reputeChrisSlicks has a reputation beyond repute
Default

Quote:
Originally Posted by igota21incher View Post
Does nobody think this is a result of bad fuel? Lol
Were you using 91 previously or 93?

Ethanol in the fuel can bond with water at a ratio at up to 10%, so with 10% ethanol in the fuel you can end up with 1% water by volume. Seems unlikely if the fuel was being sold quickly but anything is possible.

The other thing that is possible given the situation is that it was actually 87 or 89 octane gas. When you are nearly empty get some fresh fuel elsewhere and reset the CEL and see how it goes.
__________________
Hotchkis ARB | Stillen CAI | Art Pipes | Berk CBE | Stillen AP Racing Brakes | AE Performance Oil Cooler | BC Racing ER Coilovers | Doran Control Arms
ChrisSlicks is offline   Reply With Quote
Old 11-11-2012, 11:39 PM   #11 (permalink)
Premium Member
 
SouthArk370Z's Avatar
 
Join Date: Nov 2010
Location: South Arkansas
Posts: 8,435
Drives: 2014 Challenger
Rep Power: 324198
SouthArk370Z has a reputation beyond reputeSouthArk370Z has a reputation beyond reputeSouthArk370Z has a reputation beyond reputeSouthArk370Z has a reputation beyond reputeSouthArk370Z has a reputation beyond reputeSouthArk370Z has a reputation beyond reputeSouthArk370Z has a reputation beyond reputeSouthArk370Z has a reputation beyond reputeSouthArk370Z has a reputation beyond reputeSouthArk370Z has a reputation beyond reputeSouthArk370Z has a reputation beyond repute
Default

Quote:
Originally Posted by igota21incher View Post
Does nobody think this is a result of bad fuel? Lol
It _could_ be bad gas, but one event does not establish a trend. Reset everything and see what happens. If you don't get the misfire error again, then it was just coincidence. If the misfire reappears, you have another piece of evidence that the problem is bad gas. I would then check the fuel filter for water and/or trash. Matter of fact, at this point, I'd check the filter just for peace of mind.
__________________
Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub
Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma
SouthArk370Z is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Post sandy gas quality igota21incher North East Region 3 01-24-2013 10:28 AM
Hurricane Sandy you suck!!!! Carbon Fiber Element North East Region 4 10-31-2012 03:34 PM
R/T Tuning Closure -- Hurricane Sandy Erik@RTTuning R/T Tuning 1 10-31-2012 12:42 PM
Intel Sandy Bridge bigaudiofanat Wanted 1 04-17-2012 04:02 PM
Sandy Surface, what should I use? pa19103 Detailing / Washing / Waxing / Cosmetic Maintenance and Repair 2 08-20-2011 12:09 PM


All times are GMT -5. The time now is 08:51 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2