New LS1 Owners - Newbie Tech Basic Technical Questions & Advice
Sponsored by:
Sponsored by:

87 Octane gas in LS1

Thread Tools
 
Search this Thread
 
Old 12-14-2007, 02:59 PM
  #21  
12 Second Club
iTrader: (19)
 
Mr. Trick's Avatar
 
Join Date: Jan 2005
Posts: 1,086
Likes: 0
Received 0 Likes on 0 Posts

Default

Back when 91 octane was 1.80 here in nm, that was all I would use. Once the price started going up I started using 87. I havent noticed a differance at all, I took the car to the track and it ran the same. When I start to mod my car a little more I plan on switching back to 91.
Mr. Trick is offline  
Old 12-14-2007, 03:34 PM
  #22  
TECH Enthusiast
iTrader: (5)
 
OMGWTFBODY's Avatar
 
Join Date: Mar 2007
Location: Huntsville, AL
Posts: 614
Likes: 0
Received 1 Like on 1 Post
Default

93+>* for any performance engine
OMGWTFBODY is offline  
Old 12-14-2007, 08:01 PM
  #23  
TECH Fanatic
iTrader: (1)
 
NC98Z's Avatar
 
Join Date: Sep 2003
Posts: 1,306
Likes: 0
Received 0 Likes on 0 Posts
Default

But when it all comes down to it your cpu will take care of you until you descide you need 91 at least. But don't expect to outrun that mustang messing with you cause you went cheap. Fill it up with 93 and reset the cpu. There are alot of cars out there that it really doesn't matter what you put in them. But the lsx motor isn't one of them.
NC98Z is offline  
Old 12-14-2007, 09:37 PM
  #24  
Teching In
 
Castratikon's Avatar
 
Join Date: Dec 2007
Location: Louisville, KY
Posts: 15
Likes: 0
Received 0 Likes on 0 Posts
Default

Only once did my car get 87 while I've owned it due to my girlfriends mistake. I came out of the gas station just as I saw her hang up the 87 nozzle. So I calculated the gas mileage for that tank like I always do once I ran it out. 87 caused me to basically spend a dollar more on gas due to worse gas mileage then if I had put in 93. So, at least for my car, 87 costs a dollar more then using 93. No money savings to be had on it in my case.
Castratikon is offline  
Old 12-14-2007, 09:44 PM
  #25  
Staging Lane
iTrader: (1)
 
TBK'SS's Avatar
 
Join Date: May 2006
Location: Bastrop/Austin,Texas
Posts: 54
Likes: 0
Received 0 Likes on 0 Posts
Default

I use 93 octane. It doesnt cost that much more so why not?
TBK'SS is offline  
Old 12-14-2007, 09:49 PM
  #26  
Banned
iTrader: (17)
 
ApexVIII's Avatar
 
Join Date: Jun 2007
Location: Modesto
Posts: 248
Likes: 0
Received 0 Likes on 0 Posts
Default

i wish we had 93 here lol we get crappy 91
ApexVIII is offline  
Old 12-14-2007, 09:55 PM
  #27  
Launching!
iTrader: (5)
 
R W B's Avatar
 
Join Date: Sep 2007
Location: New Orleans
Posts: 207
Received 0 Likes on 0 Posts

Default

When I first bought my car I left the dealership and went sraight to the gas station I started putting in 87 and while i was fueling up i decided to look at the owners manual to only find out that it needed 93, I was like "oh ****". But I filled up anyway and didn't have any problems. Every other V8 i've driven(new or old) takes 87 so I didn't expect this to take 93. I've used 89 a few times now but only if I know i'm going to race for that tank, even if someone ask me too, I wont do it while on 89. I use 93 most of the time though.

TBK'SS and APEXVIII-Are both of your 13.2's after the mods in your sig?
R W B is offline  
Old 12-14-2007, 09:58 PM
  #28  
TECH Fanatic
 
ghardester's Avatar
 
Join Date: Aug 2006
Location: Knappa, Oregon
Posts: 1,390
Likes: 0
Received 56 Likes on 45 Posts

Default

Originally Posted by Mr Incredible
Don't be swayed by the bleating from the high-octane-only flock. If you'll read your owner's manual (imagine that...) you'll see that 87 is on the list of approved fuels.

If you don't have a copy of your owner's manual, perhaps you'll find it here.

You'll get slightly less mpg's, won't suffer appreciable timing pulls in the winter, and will not destroy your motor. As for the "I never run less that XX.", well, good for you.

Drive what you've got and enjoy it.
The owners manual for my '02, which I have right in front of me says " If your vehicle has the 5.7L V8 engine ( VIN Code G) use premium unleaded gasoline with a posted octane of 91 or higher for best performance. You may also use middle grade or regular unleaded gasoline rated at 87 octane or higher, but your vehicle's acceleration may be slightly reduced. If the octane is less than 87, you may get a heavy knocking noise when you drive. If it is bad enough it can damage your engine.

I would rather eat roots and live in a tent than put low octane fuel in my car. But that's just me.
ghardester is offline  
Old 12-14-2007, 10:05 PM
  #29  
TECH Fanatic
iTrader: (11)
 
tripblackls1's Avatar
 
Join Date: Mar 2007
Location: lancaster,ca
Posts: 1,147
Likes: 0
Received 2 Likes on 2 Posts

Default

man i run 87 all the time but for me its free(work) and well i never had a problem running it but im still stock tune too but once its tuned no more free gas
but when i actlly buy gas its always mobile 91
tripblackls1 is offline  
Old 12-15-2007, 08:23 PM
  #30  
Registered User
 
ZiOhSix's Avatar
 
Join Date: Dec 2007
Location: New York, NY
Posts: 20
Likes: 0
Received 0 Likes on 0 Posts
Default

youre willing to risk the life of ur engine for $2.40...
ZiOhSix is offline  
Old 12-15-2007, 08:37 PM
  #31  
11 Second Club
iTrader: (1)
 
speedshifterNC's Avatar
 
Join Date: Sep 2006
Posts: 575
Received 0 Likes on 0 Posts

Default

93/110 mix here...I feel stupid now that I found out you have to have the car tuned to see any performance gain from the mix
speedshifterNC is offline  
Old 12-15-2007, 10:04 PM
  #32  
TECH Fanatic
iTrader: (16)
 
Empatho's Avatar
 
Join Date: Aug 2006
Location: Internet
Posts: 1,078
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by ghardester
The owners manual for my '02, which I have right in front of me says " If your vehicle has the 5.7L V8 engine ( VIN Code G) use premium unleaded gasoline with a posted octane of 91 or higher for best performance
does it really say that, I have been using 89 on my 02 z28 but if it says that then Im going to step it up to 91
Empatho is offline  
Old 12-15-2007, 10:10 PM
  #33  
Staging Lane
 
01Pontiac's Avatar
 
Join Date: Jul 2007
Location: Rochester, NY
Posts: 50
Likes: 0
Received 0 Likes on 0 Posts
Default

for only a few bucks more every fillup, why take the chance.
01Pontiac is offline  
Old 12-16-2007, 12:21 AM
  #34  
TECH Enthusiast
 
SOM02WS6's Avatar
 
Join Date: Nov 2005
Posts: 666
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by speedshifterNC
93/110 mix here...I feel stupid now that I found out you have to have the car tuned to see any performance gain from the mix
Actually using 110 leaded can burn out your O2 sensors and gum up your cats..
SOM02WS6 is offline  
Old 12-16-2007, 12:42 AM
  #35  
TECH Senior Member
 
2MuchRiceMakesMeSick's Avatar
 
Join Date: Apr 2004
Location: Texas
Posts: 6,157
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Mr Incredible
Don't be swayed by the bleating from the high-octane-only flock. If you'll read your owner's manual (imagine that...) you'll see that 87 is on the list of approved fuels.

If you don't have a copy of your owner's manual, perhaps you'll find it here.

You'll get slightly less mpg's, won't suffer appreciable timing pulls in the winter, and will not destroy your motor. As for the "I never run less that XX.", well, good for you.

Drive what you've got and enjoy it.


87 is NOT on the list of approved fuels unless your driving a V6. Read it again



If you have the 3800 V6 engine (VIN Code K), use
regular unleaded gasoline rated at 87 octane or higher.

If you have the 5.7L V8 engine (VIN Code G), use
premium unleaded gasoline rated at 91 octane or higher

for best performance. You may use middle grade or
regular unleaded gasolines, but your vehicle’s
acceleration may be slightly reduced.


Taken directly from
https://www.mygmlink.com/pdf/go2cont...2001camaro.pdf
Page 6-3
2MuchRiceMakesMeSick is offline  
Old 12-16-2007, 12:50 AM
  #36  
TECH Enthusiast
iTrader: (3)
 
spec_j's Avatar
 
Join Date: Jul 2005
Posts: 501
Likes: 0
Received 1 Like on 1 Post

Default

Originally Posted by 2MuchRiceMakesMeSick
87 is NOT on the list of approved fuels unless your driving a V6. Read it again



If you have the 3800 V6 engine (VIN Code K), use
regular unleaded gasoline rated at 87 octane or higher.

If you have the 5.7L V8 engine (VIN Code G), use
premium unleaded gasoline rated at 91 octane or higher

for best performance. You may use middle grade or
regular unleaded gasolines, but your vehicle’s
acceleration may be slightly reduced.


Taken directly from
https://www.mygmlink.com/pdf/go2cont...2001camaro.pdf
Page 6-3
beat me to it, i was looking threw my favorites for the link. But yeah not worth saving $2-3 when you fill up. You spent money on the car, so obviously you have good taste in cars. Dont let your ceap side get the best of you. Its really not worth it at all. Sorry but my car is worth the extra few bucks everytime i fill up.
spec_j is offline  
Old 12-16-2007, 01:27 AM
  #37  
TECH Resident
iTrader: (2)
 
cherryelky305's Avatar
 
Join Date: Mar 2007
Posts: 751
Likes: 0
Received 0 Likes on 0 Posts
Default

so how is 87 not on the approved list, it says right there what you copied that you can use regular, and 91 and up for best performance.
cherryelky305 is offline  
Old 12-16-2007, 01:37 AM
  #38  
11 Second Club
iTrader: (2)
 
02Ls1Formula's Avatar
 
Join Date: Dec 2006
Location: Gainesville, Ga
Posts: 94
Likes: 0
Received 0 Likes on 0 Posts

Default

when i first got my formula i ran the cheap ****, then it started knocking, so i started running mid grade atleast, no more knock....
02Ls1Formula is offline  
Old 12-16-2007, 01:39 AM
  #39  
TECH Enthusiast
iTrader: (5)
 
09CPTN's Avatar
 
Join Date: Oct 2006
Location: Virginia
Posts: 535
Likes: 0
Received 0 Likes on 0 Posts
Default

^^^As far as I know, 87 can cause knocking in LS1's. It's just not worth it to run lower grade fuel, in the long-run your engine will be happier. Although, i'm surprised the one guy said 87 didn't do well in his LT1. In my mom's 1995 Caprice with the LT1, all we have ever used is 87, with no problems.
09CPTN is offline  
Old 12-16-2007, 04:45 AM
  #40  
TECH Cry Baby BOSS APPROVED!
iTrader: (5)
 
Urban Legend's Avatar
 
Join Date: Jul 2005
Posts: 5,799
Likes: 0
Received 2 Likes on 2 Posts
Default

I only use 93 octane. I only have bolt ons. Ha!
Urban Legend is offline  


Quick Reply: 87 Octane gas in LS1



All times are GMT -5. The time now is 04:14 AM.