Ellis
Member
Registered: 11th Sep 07
Location: Aberdeenshire
User status: Offline
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I though the ignition energy for petrol would be lower than for diesel
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mattk
Member
Registered: 27th Feb 06
Location: St. Helens
User status: Offline
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the petrol wouldnt ignite in a diesel engine
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mattk
Member
Registered: 27th Feb 06
Location: St. Helens
User status: Offline
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diesel ignites in the engine using only friction, hence having no spark plugs
petrol would need that spark
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Liam B
Member
Registered: 2nd Mar 09
Location: Herefordshire
User status: Offline
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Mate of mine accidently filled his 50cc moped to the brim with diesel  , luckily his dad owns a garage so got it sorted
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Ellis
Member
Registered: 11th Sep 07
Location: Aberdeenshire
User status: Offline
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quote:
Originally posted by mattk
the petrol wouldnt ignite in a diesel engine
Wooops right enough, I think I was getting RON ratings mixed up 
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John
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Registered: 30th Jun 03
User status: Offline
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Diesel has a cetane index, not a RON rating
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gazza808
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Registered: 30th Jun 08
Location: Peterborough
User status: Offline
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my mate runs quater tank petrol and 3quaters veg oil. no harm?
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Ellis
Member
Registered: 11th Sep 07
Location: Aberdeenshire
User status: Offline
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quote:
Originally posted by John
Diesel has a cetane index, not a RON rating
Well, meant resistance to abnormal combustion - straight out uni notes
Minimum ignition energy is lower for petrol, so surely a small amount of compression would ignite petrol?
[Edited on 03-06-2009 by Ellis]
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Joe
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Registered: 20th Jun 04
Location: Hesketh Bank, Lancashire
User status: Offline
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quote:
Originally posted by J-Dog
ya cant syphon through the petrol cap, tried that last night.
how the f£$K do the garages do it then?
If you know what you are doing you can feed the pump under the back seats and put a piece of pipe on the outlets under there and pump it out that way.
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nik
Member
Registered: 19th Jun 00
User status: Offline
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quote:
Originally posted by daymoon
petrol into a diesel = new engine due to petrol burning at highier temp
diesel into petrol = new fuel filter and a smoky ride for some time.
Not true, a mate put unleaded in my van (filled it up!) and it ran for about 90 miles on the motorway before cutting out. Undid the fuel lines and emptied the diesel out, filled up with diesel and it's been fine since.
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richc
Member
Registered: 24th Mar 07
Location: Ilkeston
User status: Offline
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quote:
Originally posted by gazza808
my mate runs quater tank petrol and 3quaters veg oil. no harm?
Yer i think the petrol make its thinner and aids combustion
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Corsa_Sport21
Member
Registered: 13th Apr 08
Location: Leven, Fife. Drives : 205 GTi
User status: Offline
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I put petrol(optimax)in my old 306DTurbo,then topped it up with the same amount of diesel and it was fine.Was a bit smokey and underpowered for a few miles but once it was cleared and topped up when it ran out,it was perfect.
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