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Thread ID: 105990 2009-12-21 05:57:00 Diesel vs petrol - how to purge the diesel? Greg (193) PC World Chat
Post ID Timestamp Content User
841932 2009-12-21 05:57:00 One of the cars in our family has run out of petrol . I want to drive to the fill-up station ( in another car of course) to get a 5 litre can of petrol to bring home to top up the tank .

The car runs on petrol .

The fuel can had about half a cup full of diesel in it, which I've since emptied onto weeds along the driveway .

My questions are . . will the residual diesel affect the petrol engine when I've filled the can with petrol and put it ito the car?

If yes . . . how best to rinse the can with petrol and get rid of the waste petrol/diesel?

I'm reluctant to fill the can with petrol and suck it out to reduce the amount of diesel residue and dispose of this waste at home . Also reluctant to pour more of the waste petrol/diesel rinsing fuel onto the driveway .

So, will the tiny bit of diesel have any adverse affect on the petrol-driven car?

Thanks .
Greg (193)
841933 2009-12-21 06:13:00 Nope that much diesel wont be a problem used to run David Brown 25 tractor on kero start on petrol. Kero not much different than diesel and kero will run in diesel engine the same as diesel.
Too much petrol in a diesel engine is a no no.
prefect (6291)
841934 2009-12-21 07:05:00 Try mopping it out with an old towel? R2x1 (4628)
841935 2009-12-21 07:21:00 I would guess there would be a bit of exhaust smoke as a result of the diesel contamination. sam m (517)
841936 2009-12-21 20:59:00 Even the 1/2 cup in 5 litres wouldn't have bothered it by the time you refilled the tank .

I've dumped old diesel into my tank in small amounts as an eco friendly way to dispose of it and never had smoke or any other problem . Same with old 2-stroke fuel, just wait till you are lowish on fuel, pour it in and go top up the tank .

No doubt SJ will pop up and tell me diesel will make my bonnet will fly off or an oxygen sensor will carbonise causing catastrophic engine failure, the ejector seat to explode or my wheels to fall off, but nothing has ever gone wrong yet .

Cheers

Billy 8-{) :2cents:
Billy T (70)
841937 2009-12-21 21:16:00 Probably work in your favour as an upper cylinder lubricant. KarameaDave (15222)
841938 2009-12-22 01:48:00 Follow Billy T's idea 100%. Have seen it done many times in the past years, no problems. BobM (1138)
841939 2009-12-22 02:24:00 a little bit of diesel won't hurt. may drop the octane rating a fraction but thats about it.

2 stroke might actually help things. something thats doing the rounds on the net at the moment is putting 2 stroke oil in diesel fuel. makes it run a lot nicer.
tweak'e (69)
841940 2009-12-22 04:15:00 Thanks folks. All is well.

LOL @ Billy.

And yeah, would be interesting to hear Joe's perspective anyway.
Greg (193)
841941 2009-12-22 05:53:00 Even the 1/2 cup in 5 litres wouldn't have bothered it by the time you refilled the tank .

I've dumped old diesel into my tank in small amounts as an eco friendly way to dispose of it and never had smoke or any other problem . Same with old 2-stroke fuel, just wait till you are lowish on fuel, pour it in and go top up the tank .

No doubt SJ will pop up and tell me diesel will make my bonnet will fly off or an oxygen sensor will carbonise causing catastrophic engine failure, the ejector seat to explode or my wheels to fall off, but nothing has ever gone wrong yet .

Cheers

Billy 8-{) :2cents:

Nope . This one you got right . It's a no-brainer and that small amount of diesel isn't gonna hurt anything .

You still may want to check your wheels anyway, Billy .
SurferJoe46 (51)
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