We have a Passat estate which runs on diesel and which we try not to use much. It is very economical on long runs, like going abroad on holiday or going to Scotland, but not so much on short trips. So normally we put £10-20 of fuel in it and then run it until the fuel gauge says EMPTY.
Well, on Saturday, the fuel gauge had been saying EMPTY for a few days and I offered to go to the garage and put £10 worth of fuel in it. Having very carefully researched which was the cheapest garage I drove with a light touch on the accelerator just in case I might run out of fuel on the way there. I had to wait whilst I was there and by the time I got to the pump was in a bit of a dream. I unhooked the unleaded pump and commenced filling the car. Now, if I had tried to put the wrong fuel in a car which took unleaded petrol using the wrong fuel pump would have meant that the nozzle did not fit in the tank. What I did not know was that this is not the case with diesel cars !
By the time I realised what I had done there was already 1.16 litres of unleaded petrol in the car. Now I was faced with a dilemma. Call someone to get the fuel emptied out of the tank or do something else. I knew that I would have to turn the engine on to move the car out of the way of the forecourt whilst I waited for someone to come. Turning on the engine would mean disaster as there was so little fuel in the car the unleaded petrol would immediately enter the system and ruin the engine creating a massive repair bill. So I decided to risk doing something else. I filled the car up with as much as diesel as I could squeeze in hoping to dilute the effect of the unleaded petrol.
It worked ! I put in just over 65 litres of diesel , diluting the unleaded fuel down to a ratio of about 1:65. I drove the car home with no ill effects. Apparently, most diesel cars can tolerate about 5% petrol in the engine and as long as we keep topping up with diesel to further dilute the petrol the car should be alright !
Emptying the fuel out would have cost around £100 and I don't know how I would have moved the car to wait. So I think this was a definite frugal win, even though the fuel budget for the month is now well overdrawn as I had to put £70 worth of diesel in the car ! I am just so glad that the car seems alright !
Great outcome! As I read your story, I remember my husband telling me about diesel versus unleaded, and that I needed to be very careful...and that cars could take a bit of contamination but not much. So glad you put in the diesel and it worked out! My husband is involved with motorcycles and surprising numbers of bike riders accidentally put diesel in their bikes ;(. Then have to have their entire fuel system cleaned out...
ReplyDeleteSo glad to hear that even bikers make these sort of mistakes !
DeleteWhen cooking oil was cheap we used to put some in with every tank of diesel, then sadly cooking oil prices shot up as everyone was doing it.
ReplyDeleteYes, we thought about that too but as you say the price of cooking oil is too high now !
DeleteMy daughter-in-law did this but didn't realise until she had put quite a bit in. She got someone from the shop (tes*co express) to help her push the car out of the way and then called out the AA or RAC, can't remember which. Cost her I think £160.
ReplyDeleteThat is great to hear that there is an alternative if it ever happens again !
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