Wrong gas
Thread Starter
Drifting
Joined: Apr 2001
Posts: 1,779
Likes: 6
From: LOS ANGELES CA.
Wrong gas
Last week I accidently put regular gas in my car.I had about 3 gals. in the tank when I filled up.Well,much to my surprise my car ran just as good on the regular as it does on Ethyl.I thought the power would suffer,but it didn't.It didn't ping either.Has anyone else put regular in their car and had similar results?Oh,I filled my car up this week with Ethyl and it runs trhe same.
Race Director
Joined: Jun 2000
Posts: 13,733
Likes: 66
From: Hurst, TX USA
No problem. I've run a few tanks of regular as a test and didn't notice any difference in normal road driving. If you are racing it could be a problem under hard acceleration. Just take it easy for a while to avoid any pinging. GM says it is OK to run 87 all the time, it just runs at a lower power.
Last edited by BigJoe; Feb 18, 2008 at 08:11 PM.
Drifting
Joined: Mar 2005
Posts: 1,760
Likes: 69
From: Fayetteville Arkansas recently moved from Oakland Ca
St. Jude Donor '06
The computer is suppose to adjust for this. You loose some horse power. I accidently put regular in the C5 I use to own and every light on the dash came on until 3 tanks full later
I also put regular in my "66" 427, 515 hp L-88 Vette and it sounded like a diesel. Had to drain the tank
I also put regular in my "66" 427, 515 hp L-88 Vette and it sounded like a diesel. Had to drain the tank
Last edited by xlr8rvette; Feb 18, 2008 at 08:13 PM.
Safety Car
Joined: Mar 2006
Posts: 3,952
Likes: 274
From: Cedar Falls Iowa
No problem --- your ECM will derate engine control performance parameters to account for lower octane level. That is unless you have a C6 Z06 --- then it's bad news and you need to get the lower octane gas out of the system before driving.
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Thread Starter
Drifting
Joined: Apr 2001
Posts: 1,779
Likes: 6
From: LOS ANGELES CA.
Racer
Joined: Apr 2007
Posts: 329
Likes: 0
From: Wichita Falls Texas
I filled up at a station last week and the pump selected regular gas even though I hit the supreme button. I did not realize it until I had put 10 gallons in. I stopped and tried it again, making sure I hit the correct button and it still gave me regular.
I ran it through and the car did not seem to mind.
I ran it through and the car did not seem to mind.
Drifting
Joined: Jul 2005
Posts: 1,343
Likes: 1
From: CA
Hertz filled our '08 rental vette with 87, and it pinged until I put 3/4 tank of 91 in it. You guys filling with regular must be deaf. The car was brand new (2 miles on the clock, so no carbon in the combustion chambers) and we were pretty gentle with it for the first 500 miles. Temps were about 55F.
I can't imagine how one car pings on 87 and the others don't. I also can't imagine how folks can spend so much money on a car and then skimp by $5 on a fill-up. Y'all must be leasing.
I can't imagine how one car pings on 87 and the others don't. I also can't imagine how folks can spend so much money on a car and then skimp by $5 on a fill-up. Y'all must be leasing.
Last edited by Irv; Feb 18, 2008 at 11:03 PM.
PHOTOSHOP SPECIALIST
Joined: Aug 2007
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St. Jude Donor '07-'08-'09-'10-'11-'12-'13-'14-'15-'16
Last week I accidently put regular gas in my car.I had about 3 gals. in the tank when I filled up.Well,much to my surprise my car ran just as good on the regular as it does on Ethyl.I thought the power would suffer,but it didn't.It didn't ping either.Has anyone else put regular in their car and had similar results?Oh,I filled my car up this week with Ethyl and it runs trhe same.
From the 2006 Owner's Manual:
Melting Slicks
Joined: Apr 2005
Posts: 3,216
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From: ---Phoenix, AZ --- Boiler Up, Hammer Down!
Hey I lease and only use premium (91 octane in AZ). 
Team Owner
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From: Big Bend Country, TX
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15- '16-'17-‘18-‘19-'20-'21
NCM Lifetime Member
Race Director
Joined: Dec 2004
Posts: 10,262
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From: Manhatten Beach, California
St. Jude Donor '05 thru '11,'18,'20,'21,'24,'25, '26
I use 91 in CA.
Chervon most of the time.
Putting in 87 may not be the best but will work and harm.
Go with Factory Recom>
Made in USA the C-6
Chervon most of the time.
Putting in 87 may not be the best but will work and harm.
Go with Factory Recom>
Made in USA the C-6
