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73-87 Chevy _ GMC Trucks => Fuel Systems and Drivability => Topic started by: Swampyankee74 on September 14, 2022, 03:50:43 PM

Title: Leaded fuel
Post by: Swampyankee74 on September 14, 2022, 03:50:43 PM
Should I be running leaded fuel in my 1974 250 l6?
Title: Re: Leaded fuel
Post by: zieg85 on September 14, 2022, 04:38:56 PM
Not necessary.
Title: Re: Leaded fuel
Post by: Swampyankee74 on September 14, 2022, 05:31:26 PM
Thank you
Title: Re: Leaded fuel
Post by: JohnnyPopper on October 04, 2022, 12:02:50 PM
Where can you buy leaded fuel these days?
Title: Re: Leaded fuel
Post by: Shifty on October 04, 2022, 04:27:39 PM
Quote from: JohnnyPopper on October 04, 2022, 12:02:50 PM
Where can you buy leaded fuel these days?
That was my thought as well....
Title: Re: Leaded fuel
Post by: VileZambonie on October 04, 2022, 06:27:02 PM
Sunoco
Title: Re: Leaded fuel
Post by: Swampyankee74 on October 04, 2022, 07:49:13 PM
There is also lead fuel additive on the shelf at napa. I have a 46 flathead motorcycle I used to buy the additive for.
Title: Re: Leaded fuel
Post by: JohnnyPopper on October 04, 2022, 08:07:57 PM
Quote from: Swampyankee74 on October 04, 2022, 07:49:13 PM
There is also lead fuel additive on the shelf at napa. I have a 46 flathead motorcycle I used to buy the additive for.

Is it Tetraethyl lead?

Come to think about it, some fleet stations sell racing fuel at the pump for offroad machines.
Title: Re: Leaded fuel
Post by: Swampyankee74 on October 05, 2022, 05:00:29 AM
I was wrong all napa has is lead substitute now. Tetraethyl lead is still for sale online tho. There is a company tetraboost e-guard 15
Title: Re: Leaded fuel
Post by: bd on October 05, 2022, 11:46:30 AM
Quote from: JohnnyPopper on October 04, 2022, 08:07:57 PM
Is it Tetraethyl lead?


'terodactyl lead is some really old stuff!   ;D


Add a little dragon breath aromatic and it might make a lucrative brand... "It'll fly right off the shelf into your tank.  Guaranteed to make your beast roar!!!"   8)

Title: Re: Leaded fuel
Post by: ehjorten on October 06, 2022, 10:06:07 AM
Hardened valve seats are a beautiful thing!