Will petrol and diesel even mix, not sure but won't they just seperate out with the petrol floating ontop of the diesel?
Technical oops, petrol into jtd
- Thread starter reido2
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Technical oops, petrol into jtd
no they are both oil basedthepottleflump said:
reido2
New member
no they won't mix or no they won't separate ?
They are miscible but will have different densities.
I remember reading somewhere that in oil tankers they float the petrol ontop of the diesel, god knows if it was correct, accurate or true! Sounded feasable, different densities etc?
kev1
New member
StiloBoy said:
nope,it's all compartmentalised (wow 17 letters:slayer: ) whether it's a road fuel bowser(tanker) or sea tanker
The Trooper
Established member
Sorry for bringing up an old thread, but I've just done the very embarrassing thing of putting petrol in my JTD Punto, although I'm sure it's similar to a Stilo (I'm wearing a paper bag on my head as I type!). I put 80p worth of BP Ultimate petrol in (so about 1 litre) before I realised my foolish mistake, and then topped up to the brim with diesel Ultimate (£35 pounds worth). There was also a bit of diesel in the tank before I filled up, but it the fuel light had come on.
Maths wasn't my best subject, but I think that's just over 2% of petrol amongst the diesel, should I expect problems in a few months time? Oh, the car drove lovely afterwards by the way, it averaged 57mpg back from the garage!
Maths wasn't my best subject, but I think that's just over 2% of petrol amongst the diesel, should I expect problems in a few months time? Oh, the car drove lovely afterwards by the way, it averaged 57mpg back from the garage!
now without me reading the entire thread petrol in a diesel is bad news, you maybe ok with that small amount. only time will tell
The Trooper
Established member
now without me reading the entire thread petrol in a diesel is bad news, you maybe ok with that small amount. only time will tell
Yes that seems the general rule, reading around though, it seems people have got away with small amounts. I sure as hell ****ing hope I'm one of them!! I thought topping it up to the brim with diesel would dilute it, my thinking being that new cars with their fancy ECU's and whatever can 'control' the fuel mix, so that even if the fuel was really s*ite, it'd still run. Therefore, I thought a small amount of petrol would be combatted by the power of the ECU :slayer: But my logic doesn't always make sense
I'm dreading starting it up in the morning now, time will tell and I'll keep you posted. May keep topping it up just to help dilute whatever petrol is left.
I don't know if it would be worth putting some injector cleaner in the tank as well, when you've used most of the petrol?
The Trooper
Established member
Yes, I'll give it a shot, but definitley when I'm suire all the petrols has burnt off? Or would you recommend putting it in now? I did go for a little drive to help burn off the petrol, although there really is no way of knowing if I have or not, unless I run the tank dry (which'll take me a week or 2!).
I feel very silly.
I would probably think it's best to put it in when you've got rid of most of the petrol, either run the tank dry or keep topping up with diesel, then try some injector cleaner in a couple of weeks time.
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In some extreemly cold countries, they put a small amount of petrol in to stop waxing in diesel engines. The damage you could cause depends on the ratio. Any more that about 15:1 and you are pushing it a bit. Keeping the engine topped up does help a bit, but you usually find that you will have to replace the fuel filter at next service.
In other words, I wouldnt panic too much unlees you have put over 8% petrol to diesel in.
There is a bit of a myth surrounding common rail diesel engines saying that if you so much as put a drop of petrol in it, it will knacker the engine. Absolute coblers if you ask me.
Also, putting petrol in a diesel is not a 'time bomb'. If you have caused any damage, the symptoms are immediate, so all this banter about 4k miles later is not really relevant.
In other words, I wouldnt panic too much unlees you have put over 8% petrol to diesel in.
There is a bit of a myth surrounding common rail diesel engines saying that if you so much as put a drop of petrol in it, it will knacker the engine. Absolute coblers if you ask me.
Also, putting petrol in a diesel is not a 'time bomb'. If you have caused any damage, the symptoms are immediate, so all this banter about 4k miles later is not really relevant.
The Trooper
Established member
I just worked out I put 2.3% petrol in, and that's not counting the fuel that was already in my car, so really it's less than that. Ok, so I'll run it down to about 3 quarters of a tank, then top it up, and as dan-the-man said, I'll stick some inkjector cleaner in in a couple of weeks time. I daresay if the fuel filter needs changing, there'd be tell tale signs? Ie, poor mpg?
Thanks for all the advice guys, even if I do come from the dark side (the Punto section ), it's good to see you're still helping me
Thanks for all the advice guys, even if I do come from the dark side (the Punto section
), it's good to see you're still helping me 
That's ok, just lose the Punto, buy a Stilo and we're all even.
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Just a bit of experience. I lent mine to friend and he put £2.00 worth of ptrol in it and then realised. We filled it up with diesel and it has never missed a beat.
I recently siphoned some diesel out of an old tractor that had been rotting for about 15 years on a local farm and put it in my tank. No problem there.......joke
I recently siphoned some diesel out of an old tractor that had been rotting for about 15 years on a local farm and put it in my tank. No problem there.......joke
even if I do come from the dark side (the Punto section
I had a mk2 Punto, and then I seen the light and got a Stilo
The Trooper
Established member
Wouldn't touch one of them Stilo's with a smelly stick. 'Erd bad things about them (joking btw, my Dad had one and it was alright!).
Well, a few days on, and the cars driving beautifully so far. And it's still getting really good MPG, which is all very good, but it is worrying me, as it maybe an effect of the petrol. I've bought a bottle of Redex, I think I might stick half the bottle in when the tanks half empty (or is it half full? ) and fill it up with diesel again, wait til it gets to almost empty, and then stick the rest of the Redex in and top up again...
...did you get all that!? May take a while as the car's quite frugal, maybe it's an excuse to go driving round randomly just to burn the fuel down quicker :devil:
(joking btw, my Dad had one and it was alright!).Well, a few days on, and the cars driving beautifully so far. And it's still getting really good MPG, which is all very good, but it is worrying me, as it maybe an effect of the petrol. I've bought a bottle of Redex, I think I might stick half the bottle in when the tanks half empty (or is it half full?
) and fill it up with diesel again, wait til it gets to almost empty, and then stick the rest of the Redex in and top up again......did you get all that!? May take a while as the car's quite frugal, maybe it's an excuse to go driving round randomly just to burn the fuel down quicker :devil:
carcazy
New member
I accidentally put 30ltrs of petrol in my mums Land Cruiser
I didn't even realise nor did she as she was still in the car whilst I was filling up.
Drove to our destination about 7 miles away and all was fine until we was ready to leave and the cruiser would start
We both was confused as to why it wouldn't start, so my mum ask me what gas I put in the car and I replied "i dunno, maybe petrol" she checked the gas receipt and found that I had put petrol in
AA came out and towed the car away, garage then charged £160 to get the fuel tank and engine drained and they also supplied 5ltrs of desiel.
I was shock that we manade to drive for that many miles with petrol in the tank. I think maybe the engin still had diesel in it.
.
I didn't even realise nor did she as she was still in the car whilst I was filling up.
Drove to our destination about 7 miles away and all was fine until we was ready to leave and the cruiser would start
We both was confused as to why it wouldn't start, so my mum ask me what gas I put in the car and I replied "i dunno, maybe petrol" she checked the gas receipt and found that I had put petrol in
AA came out and towed the car away, garage then charged £160 to get the fuel tank and engine drained and they also supplied 5ltrs of desiel.
I was shock that we manade to drive for that many miles with petrol in the tank. I think maybe the engin still had diesel in it.
.
alrightmarlow
New member
I had a similar problem with a company car once (a 1998 Rover 400 diesel, 420 SLDi to be precise). I used to have to lend it to trainees when they went to visit customers. My only insistence was always that they replaced the fuel they used (which they duely did).
One Friday I lent it to one of them and off he went. Over the weekend I drove the car and it went like an absolute dog. It was truly awful - very very slow and smoking a lot. I got back into the office on Monday and informed the garage who immediately asked if petrol had been put in it. "Oh no, I wouldn't do a thing like that" I told them. When we checked the trainee's expenses claim though, it transpired that he had put about 20ish litres in instead of petrol! Anyway, long story short - no permanent damage was done but everything had to be drained out. And the trainee lost a lot of his wages and had a ticking off from the MD!
One Friday I lent it to one of them and off he went. Over the weekend I drove the car and it went like an absolute dog. It was truly awful - very very slow and smoking a lot. I got back into the office on Monday and informed the garage who immediately asked if petrol had been put in it. "Oh no, I wouldn't do a thing like that" I told them. When we checked the trainee's expenses claim though, it transpired that he had put about 20ish litres in instead of petrol! Anyway, long story short - no permanent damage was done but everything had to be drained out. And the trainee lost a lot of his wages and had a ticking off from the MD!
