m.p.g and lead additive
i am wondering what is the average miles per galion to be reasonble in a 73 super beatal and do i have to use "lead additive" to the un-leaded fule?
Lead additive is basically a scam -- what lead used to do was lubricate the valve seats on the older vehicles. With the advent of unleaded gasoline, hardened valve seats came into use and eliminated the need for lead in fuel. I used to use lead additive in my '68 Caddy...Saw no real benefit from doing it, except I was spending $2 extra to put a bottle into each tank of gas. If your '73 has "Unleaded fuel only" on it, either on the fuel cap, etc., you are fine without any additive. As far as I have read, no one has had a massive problem with using unleaded fuel without additive in older vehicles, and I've been involved with older cars for quite a few years. As far as your MPG, I'd imagine 15-20 tops, on the highway.
my high milage 73 super beetle gets 27-29mpg on 87 octane on the highway running 60-75mph.
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