Gas Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

lutherb69 · 01-30-2006, 08:09 PM

Hello I know this may be a dumb question. I just got a 68 Burban. I was trying to find out do I have to add lead to the gas or can I just run unleaded with out it messing up the inline 6. I ask because one of my Co-workers told me that I did and another told me that I didn't. Thank you for the help and your time.

RANDY COX · 01-30-2006, 09:42 PM

Well I have a 70 with 6 banger and been running it with unleaded,hhhmm,I was thinking that earlier 6 bangers needed regular(leaded),good question.Guess I don't know either.Any body else have a clue.

Frizzle Fry · 01-30-2006, 10:23 PM

We've run a '64 235 on unleaded for 30 years, no issues. If a '64 doesn't need it then a 68 shouldn't.

Superron21 · 01-30-2006, 10:40 PM

my 68 has a 66 283 that does fine on decaf NO WORRIES

lutherb69 · 01-31-2006, 12:06 AM

Thanks guys this will help me sleep better tonight

Scrubby · 01-31-2006, 12:01 PM

I run unleaded in all my classics. Yeah, the exhaust seats may wear out faster, but by that time, I probably need new heads anyway.

**special-K** · 02-02-2006, 08:46 AM

I never buy additive.If it starts smoking,do the headwork with the money you didn`t spend on additive everytime you fill up.

86swb · 02-02-2006, 09:07 AM

What year did they quit putting lead in gas engines? The "70 has been running on regular none leaded gas for as long as there has been no lead it the fuel. No problems.

smokekiki · 02-02-2006, 09:48 AM

The last year it was sold at the pump was in 1986.You can still by 117 octane race fuel from sunoco,that has lead in it,it is $17.00 a gallon!Here is an article on leaded gas .....http://yosemite.epa.gov/r10/AIRPAGE....5?OpenDocument

86swb · 02-02-2006, 10:43 AM

I think I would pass on the $17.00 a gallon. The way things are going regular will be at that in the near future.

But hope not.

lutherb69 · 02-02-2006, 02:14 PM

I just didn't want it to go up in smoke.

Superron21 · 02-02-2006, 11:54 PM

i know a guy that runs a 250 inline 6 all the time at high rpms on 87 octane unleaded and has no problem. do yourself a favor and put an hei distributor in it, you'll get better milage and performance and you should be able to score one for about $40.00 at a salvage yard or ebay. good luck

lutherb69 · 02-03-2006, 08:59 PM

Thanks

01-30-2006, 08:09 PM	#1
lutherb69 Registered User Join Date: Oct 2005 Location: Langley AFB, Va (Army) Posts: 124	Gas Question Hello I know this may be a dumb question. I just got a 68 Burban. I was trying to find out do I have to add lead to the gas or can I just run unleaded with out it messing up the inline 6. I ask because one of my Co-workers told me that I did and another told me that I didn't. Thank you for the help and your time. Last edited by lutherb69; 01-30-2006 at 08:10 PM.

01-30-2006, 09:42 PM	#2
RANDY COX Registered User Join Date: Mar 2001 Location: RADFORD, VA Posts: 2,651	Re: Gas Question Well I have a 70 with 6 banger and been running it with unleaded,hhhmm,I was thinking that earlier 6 bangers needed regular(leaded),good question.Guess I don't know either.Any body else have a clue. __________________ 1964 BBC 402 4x4

01-30-2006, 10:23 PM	#3
Frizzle Fry Registered User Join Date: Aug 2005 Location: Hillsboro Oregon Posts: 6,449	Re: Gas Question We've run a '64 235 on unleaded for 30 years, no issues. If a '64 doesn't need it then a 68 shouldn't.

01-30-2006, 10:40 PM	#4
Superron21 DONT TRY THIS AT HOME! Join Date: Mar 2005 Location: East Tennessee Posts: 119	Re: Gas Question my 68 has a 66 283 that does fine on decaf NO WORRIES

01-31-2006, 12:06 AM	#5
lutherb69 Registered User Join Date: Oct 2005 Location: Langley AFB, Va (Army) Posts: 124	Re: Gas Question Thanks guys this will help me sleep better tonight

01-31-2006, 12:01 PM	#6
Scrubby Check out GMTrucks.org Join Date: Sep 2003 Location: Boise, Id Posts: 284	Re: Gas Question I run unleaded in all my classics. Yeah, the exhaust seats may wear out faster, but by that time, I probably need new heads anyway.

02-02-2006, 08:46 AM	#7
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,852	Re: Gas Question I never buy additive.If it starts smoking,do the headwork with the money you didn`t spend on additive everytime you fill up. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

02-02-2006, 09:07 AM	#8
86swb Born a Chevy Man Join Date: Apr 2005 Location: Navarre, Florida Posts: 10,221	Re: Gas Question What year did they quit putting lead in gas engines? The "70 has been running on regular none leaded gas for as long as there has been no lead it the fuel. No problems. __________________ John or 86 (Viet Nam combat Vet-BIG RED ONE) '65-'66 1986 Chevy SWB Silverado 1984 Chevy Longbed Silverado New Kia Sportage (Wife's car and she loves it) CHEVY, American made w/pride! If you can read this, YOU NEED TO THANK A TEACHER! If you can read this in ENGLISH, PLEASE THANK A SOLDIER! GOD BLESS AMERICA AND BLESS OUR FIGHTING TROOPS

02-02-2006, 09:48 AM	#9
smokekiki Mike Join Date: Jan 2003 Location: west chester pa Posts: 2,474	Re: Gas Question The last year it was sold at the pump was in 1986.You can still by 117 octane race fuel from sunoco,that has lead in it,it is $17.00 a gallon!Here is an article on leaded gas .....http://yosemite.epa.gov/r10/AIRPAGE....5?OpenDocument __________________ 70'c/10, 71 suburban4x4 402bb, 72suburban 4/6 drop, 72k/5 4x4 blazer 4" lift 35 tires

02-02-2006, 10:43 AM	#10
86swb Born a Chevy Man Join Date: Apr 2005 Location: Navarre, Florida Posts: 10,221	Re: Gas Question I think I would pass on the $17.00 a gallon. The way things are going regular will be at that in the near future. But hope not. __________________ John or 86 (Viet Nam combat Vet-BIG RED ONE) '65-'66 1986 Chevy SWB Silverado 1984 Chevy Longbed Silverado New Kia Sportage (Wife's car and she loves it) CHEVY, American made w/pride! If you can read this, YOU NEED TO THANK A TEACHER! If you can read this in ENGLISH, PLEASE THANK A SOLDIER! GOD BLESS AMERICA AND BLESS OUR FIGHTING TROOPS

02-02-2006, 02:14 PM	#11
lutherb69 Registered User Join Date: Oct 2005 Location: Langley AFB, Va (Army) Posts: 124	Re: Gas Question I just didn't want it to go up in smoke.

02-02-2006, 11:54 PM	#12
Superron21 DONT TRY THIS AT HOME! Join Date: Mar 2005 Location: East Tennessee Posts: 119	Re: Gas Question i know a guy that runs a 250 inline 6 all the time at high rpms on 87 octane unleaded and has no problem. do yourself a favor and put an hei distributor in it, you'll get better milage and performance and you should be able to score one for about $40.00 at a salvage yard or ebay. good luck Last edited by Superron21; 02-02-2006 at 11:54 PM.

02-03-2006, 08:59 PM	#13
lutherb69 Registered User Join Date: Oct 2005 Location: Langley AFB, Va (Army) Posts: 124	Re: Gas Question Thanks



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