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Author: Subject: Classic car exhaust smell
PSpirine

posted on 11/12/11 at 12:34 PM Reply With Quote
Classic car exhaust smell

I was wondering.. what is it that gives old cars that characteristic smell when they drive past (or you stand near one)?

Everything from Triumphs to Mini's to old yank mobiles all seem to do it, and they have that smell whether the engine is knackered or in good condition.. So I don't think it's necessarily burning oil. Or maybe it's burning a different type of oil?

So what is it that is different about them compared to say a 90's japanese or ford engine which just seem to lack the same smell?


Bored on a sunday.

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blakep82

posted on 11/12/11 at 12:38 PM Reply With Quote
my mum could always tell when a classic car was running on castrol r oil from the smell of it driving by, so maybe its that?





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BenB

posted on 11/12/11 at 12:38 PM Reply With Quote
It's probably just petrol
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dhutch

posted on 11/12/11 at 12:51 PM Reply With Quote
quote:
Originally posted by BenB
It's probably just petrol


Yeah, as far as i know, just mass unburnt hydrocarbons, and a few by products of.

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PSpirine

posted on 11/12/11 at 12:52 PM Reply With Quote
Does that imply then that they all run too rich? (at least in parts of the rpm range - e.g. idle)
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jollygreengiant

posted on 11/12/11 at 12:57 PM Reply With Quote
Castrol-R, just have a sniff of Snuggs's Viento Exhaust. (I did think about writing that without 'Vieto' in it.)





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T66

posted on 11/12/11 at 01:23 PM Reply With Quote
My Lada used to smell like a classic - its all the oil dripping from the gearbox,diffs,sump mixed with a few petrol whiffs, and stuff melting etc.


Mine didnt have the leather seats, so there was never a leather whiff.






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mark chandler

posted on 11/12/11 at 02:01 PM Reply With Quote
No cat, smells like an old lawnmower !
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tegwin

posted on 11/12/11 at 02:19 PM Reply With Quote
Yup, I think the key here is no Cat.... Plus perhaps a little richer than a modern engine..





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loggyboy

posted on 11/12/11 at 02:35 PM Reply With Quote
Could be a combination of lots of things:
Those mentioned above such as unburnt fuel, CAT, a more efficent burn and those recycling carbon canisters.

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TheGiantTribble

posted on 11/12/11 at 02:48 PM Reply With Quote
One of the great things about the Goodwood revial is the smell, for some strange reason especially with the bikes....
Castrol R
Mmm mmmm

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balidey

posted on 11/12/11 at 03:34 PM Reply With Quote
Perhaps its not the car. Maybe a feint smell of wee from the old git driving it?





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Xtreme Kermit

posted on 11/12/11 at 04:25 PM Reply With Quote
quote:
Originally posted by balidey
Perhaps its not the car. Maybe a feint smell of wee from the old git driving it?


PMSL...

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Phil.J

posted on 11/12/11 at 04:37 PM Reply With Quote
I always put a bit of Castrol 'R' in the lawnmower petrol. Makes cutting the lawns almost pleasurable!
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macc man

posted on 11/12/11 at 06:37 PM Reply With Quote
I love the smell of high octane exhaust smoke and squeeling rubber. Could be why I marshal at Oulton.
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Ninehigh

posted on 11/12/11 at 07:23 PM Reply With Quote
I found old cars smell a bit oily on the inside... It's like "old car smell"






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flak monkey

posted on 11/12/11 at 07:44 PM Reply With Quote
Simple, no CAT... thats the only reason

Carb or injection, they'll smell the same. Mainly unburned hydrocarbons. If its really rich it'll just smell of petrol





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