Best gas for 1957 Thunderbird

[Nubirder]

Just purchased my 1957 Thunderbird and wanted advice on the best gas choice. Thanks

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[Nubirder]

Thanks for response. Not familiar with the manual you mentioned. I will look into purchasing. Also, joining a local chapter. As I mentioned, I just acquired the car.

 

[Birdman57]

I’ve only heard of D,E and F codes what is. C code bird?

 

[Birdman57]

I’ve only heard of D,E and F codes what is. C code bird?

 

[OneAmongOthers]

Find fuel without ethanol in it if possible. That shoot will eat your engine. Also since these defiantly have the softer valve seats you need a lead additive. Well that;s if its original. If your engine has been rebuilt or swapped then dunno.

 

[jack-in-sac]

I don’t know what a C code burgers


What is a C code bird never heard of it

D code: 312c.i. 4 barrel carburetor
E code: 312c.i. two 4 barrel carburetors
F code: 312c.i. single 4 barrel carburetor with supercharger
DF code early supercharged with D code requires documentation to define as a DF
C code: base Thunderbird model with 292c.i. 2 barrel carburetor

 

[jack-in-sac]

Ethanol does not eat your engine. However it is harmful to older formulation rubber in the fuel system. In normal driving you likley will not need hardened valve seats. I do recommend use of a zinc additive and using an engine oil like
rotella for diesle engines as it still has zinc in it.

 

[Nubirder]

Thanks for this tip. Really appreciate it.

 

[OneAmongOthers]

Ethanol does not eat your engine. However it is harmful to older formulation rubber in the fuel system. In normal driving you likley will not need hardened valve seats. I do recommend use of a zinc additive and using an engine oil like
rotella for diesle engines as it still has zinc in it.

Lucas has a specially formulated oil for classic cars with high zinc additive in it. As for ethanol... It's a water based fuel isn't it? Not really good going into your engine. And for hardened valve seats... I didn't say get them. Just add some lead additive into your fuel on each fill up.

 

[jack-in-sac]

Lucas has a specially formulated oil for classic cars with high zinc additive in it. As for ethanol... It's a water based fuel isn't it? Not really good going into your engine. And for hardened valve seats... I didn't say get them. Just add some lead additive into your fuel on each fill up.

Ethanol is in the group of alcohols. Think happy thoughts for corn farmers in the mid west as a source of ethanol.