OT Never mind the super railway-

[ARW]

I'll give you a wave if you are near Mere as I am working there soon.

I think every house on that street has electric gates.

[Martin Brown]

There are long tedious tables of pass values:

Diesels will wipe the floor with petrol cars for fuel efficiency - the only downside is that the engine noise is noticeably higher and the initial cost is higher too but if you do a high mileage the fuel saving even with the UK's ludicrous high price for diesel is still worth it.

[tabbypurr]

almost every car does high mileage, 100-200k.

NT

[Vir Campestris]

You can push them both as hard as you like - so long as you don't inject the fuel until you want it to burn.

This is common in diesel engines, and rare in petrol ones. _That's_ the difference - not the type of fuel.

Andy

[Fredxx]

The type of fuel determines the difference from its octane/cetane rating. The difference is how to best make use of this fuel.

[Dave Plowman (News)]

Really? Fuel in a petrol engine doesn't burn until the spark occurs. Unless something is very wrong.

[Roger Hayter]

That's because conventional petrol engines have to limit compression ratio to avoid pre-ignition. Bit of a circular conversation this.

[ARW]

I am sure I once watched a old film version where they were killed by sea water.

[Robin]

Yep

s'why you should always put salt on your veg

(And from 1962 so not so much of the "old": please consider "vintage" or "matured")

[ARW]

Point noted.

is "well aged" acceptable?

[Vir Campestris]

Reciprocating, surely? unless you want to bring gas turbines in...

Andy

[Bob Eager]

Or Wankel engines.

[Robin]

<snip>

excellent, thanks. But then I am of the age when one hopes for that - but fears "corked" ;)

[tabbypurr]

Not really. Think about it some more.

Not really.

NT

[tabbypurr]

Trust you to miss the point. We were talking about the limit's of each fuel's capability, not common engine practice.

NT