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Fuel Additive in an unconverted 1800 ?

There appears to be quite a bit of conflicting advice around this.

Just been using BP super unleaded with no additives so far.

As she hasn't really been used in anger yet I thought I'd solicit some opinionĀ  from here.

So what do you guys advise ?




I have owned my standard 50,000 LE since 2011 and have only run her on standard 97 fuel. She runs well/ no pinking overheating or running on

Alan Lund has reacted to this post.
Alan Lund
If it ain't broken don't try to fix it as if you do it will definitely break

We do use the additive and super unleaded in our B (and 79 Midget) I was always given to understand the additive helps protect the valves and valve seats, not necessarily about how well the engine runs?

I think its more a matter of preference, it doesn't cost that much and lasts quite a while