Car appreciation... the aesthetics, the engineering, etc

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Dammit

In some ways bio fuels are better for classics- and of course in others far worse.

Cars designed for leaded fuel were really just designed for higher octane fuel than standard unleaded (and potentially some super unleaded) - so the use of bio-fuels that have (in some cases much) higher octanes than 100% fossil fuel based unleaded is useful. However, the alcohol/methanol content can rot fuel lines, bits of the carb etc- but really nothing that can’t be fixed by giving the engine and fuel system a once over.

I’m a fan of the idea of running a car on what I’ve grown (and then fermented) in my garden.

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TRA in reply to @Dammit

Isn't it also the metallurgy or some of the older engines? I know my 83 505 I didn't need lead supplement as the valve seats were hardened and we're happy with unleaded but other older engines needed the lead as lubricant.

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lynx in reply to @TRA

The funny thing is that a '69 engine ran unleaded fine, but a '72 allegedly didn't.

In the end, I ran the '72 on unleaded and waited till the valve seats started to receed and then I'd strip the head and then machine the head for larger valves as possible.

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