A&Q about 350Z
Q:
do you recon a modern car will run with 2 ltrs of diesel in a full tan of petty??
someone on another forum i go on has just bunged 2ltrs of diesel in then realised....if they brim it with petrol will it run well enough to run round and use the fuel
A:
Should be fine...... 2 litres is nothing against a full tank.
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id drain the tank and lines would not even think about it
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do you recon a modern car will run with 2 ltrs of diesel in a full tan of petty??
someone on another forum i go on has just bunged 2ltrs of diesel in then realised....if they brim it with petrol will it run well enough to run round and use the fuel
It will lower the octane and ping like mad.
I remember filling my company diesel van with petrol( let's not go there), which later had to be recovered. When I did this the tank was almost empty or the yellow light was showing. As I was not going to pay the lease company to so to empty the sytem, I came out the following day drained the tank of the contaminated petrol and put in diesel. I had 50 litres of petrol to use. So I some put it in my 2.0 3A Mk2. It worked like Sh... It also used the rest in my then 16v and that started to ping like mad. I will never use contaiminated petrol ever agian and was glad when it was out my cars systems.
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someone just done that at work, put a full tank of petrol in a l200d!!!!!
i would drain all the fuel, diesel in a modern petrol is not good, will **** it up mate, i put 2 l of dielse in my 16v rado, but thats a old engine, these new uns are soo much more tempermental
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Well there's a mixture of views!
TSC is always worth listening carefully to but Toyotec has some interesting experience?
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Aye, but your yellow light on a van probably comes on with about 2 gallons left in it, not 2 litres...... a modern car will detect the knocking and retard the timing.
do you recon a modern car will run with 2 ltrs of diesel in a full tan of petty??
someone on another forum i go on has just bunged 2ltrs of diesel in then realised....if they brim it with petrol will it run well enough to run round and use the fuel
It will lower the octane and ping like mad.
I remember filling my company diesel van with petrol( let's not go there), which later had to be recovered. When I did this the tank was almost empty or the yellow light was showing. As I was not going to pay the lease company to so to empty the sytem, I came out the following day drained the tank of the contaminated petrol and put in diesel. I had 50 litres of petrol to use. So I some put it in my 2.0 3A Mk2. It worked like Sh... It also used the rest in my then 16v and that started to ping like mad. I will never use contaiminated petrol ever agian and was glad when it was out my cars systems.
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oh well i told em to fill it up....its not a performance car anyway , and plodding around in a smokey pinking car will teach em a lesson
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The main issue is the reduction in octane rating of the fuel. Did you fill up with unleaded, or super unleaded? I guess, with 2 litres in a 50 litre tank, that's 4%. The octane rating of diesel is around 15-25. So, assuming a linear relationship, the mix (if you used unleaded, not super) is 92 octane rating. If you'd used super unleaded, you'd have gotten around 95 octane mix.
What make/model is the car? You might be okay on 92 octane fuel, if you drove really gently (for the entire tank full of fuel!) Other options include adding an octane booster (around £5-10).
I doubt if the other physical and chemical properties - higher viscosity, higher energy per mass, higher density - would make any difference at 4% mix.
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I did a few litres once, smoked a little and had he odd missfire but nowt on next fill up. I'd not worry.
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when i worked for palmers, a driver stuck a whole tank of petrol in a diesel or vice versa, in a VW caravelle
thing ran well! they were bloody surprised by it!
i was just glad it got us home from the race track!
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The main problem with petrol in a diesel engine is that petrol has no lubricating properties whereas the diesel has. This means that the injector pump internals are not being lubricated which can lead to disaster.
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The main problem with petrol in a diesel engine
aye, but its diesel in a petrol car!
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The main issue is the reduction in octane rating of the fuel. Did you fill up with unleaded, or super unleaded? I guess, with 2 litres in a 50 litre tank, that's 4%. The octane rating of diesel is around 15-25. So, assuming a linear relationship, the mix (if you used unleaded, not super) is 92 octane rating. If you'd used super unleaded, you'd have gotten around 95 octane mix.
What make/model is the car? You might be okay on 92 octane fuel, if you drove really gently (for the entire tank full of fuel!) Other options include adding an octane booster (around £5-10).
I doubt if the other physical and chemical properties - higher viscosity, higher energy per mass, higher density - would make any difference at 4% mix.
In my case it did. My 16v on CIS at the time would run on 95 with slight pinking when the air temp was 21degC or higher. And my digifant 2.0 8v runs 95 all the time no problems. I know this because I took time to set my best spark setting on the dizzys using the 'Butt dyno'. When the yellow light was on in my van I had already covered 45 miles and was feeling 'guilty' so I stopped and filled it with '95' unleaded petrol by accident. As I did not want to throw away my 'free fuel' when I drianed the tank, so I put it in my two cars that were already optimised to work on 95 unleaded. The tanks in these were 3/8s full (8v), which was filled and 1/2 full (16v) which was topped up with the remaining contaminated fuel. The result was if I had advanced the dizzy to 35degs BTDC @idle on both cars! Even at light throttle it would rattle away. Plus the smoke made my both Golfs smell like an old Route Master.
Even though you have a knock sensor on the car the det threshold will be significantly lowered with diesel oil in petrol fuel. From my experience I am not too sure if a knock sensor could work effectively with the range of spark need to be removed under this condition. If this car is a modern example perhaps it may be ok at very light loads. You will still smell like a route master though.
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I put 14 litres of diesel in my driver (carb engine) in France, it would only do 60 without pinking and if there was a slight hill it also pinked. But i drove right accross france gently (in 4th i think) trying to dilute it at every opportunity (which was a slow process cos it did 55 mpg ) and it eventually it was OK. IIRC it did smoke a bit when you gave it some throttle...
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I put 14 litres of diesel in my driver (carb engine) in France, it would only do 60 without pinking and if there was a slight hill it also pinked. But i drove right accross france gently (in 4th i think) trying to dilute it at every opportunity (which was a slow process cos it did 55 mpg ) and it eventually it was OK. IIRC it did smoke a bit when you gave it some throttle...
It would have been quicker, to let it run right down with the mixed tank, then fill up with petrol; rather than keep topping it up regularly.
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Dont forget, modern Cat's are very sensitive to this sort of thing...and they aint cheap to replace...
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dont diesels have cats too?
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dont diesels have cats too?
latest ones do, think they call them particulate filters