Thread: Diesel hilux with 10L petrol in it?

Punch a hole in the tank, drain it and fill the hole with bluetac

Originally Posted by woods223

Any more than 10% petrol in diesel fuelled engine and you’re into danger territory. Fukin amazing how many people cock this up when they’re in a rush or distracted. A mate of mine did it twice with his courier 2.5 diesel and he was an ex-mechanic for fcks sake.

I put $20 worth of petrol into Dads LD28 powered Skyline a few years back, just topped right up with diesel and away I went, the old Skyline never missed a beat.

Originally Posted by Maca49

Punch a hole in the tank, drain it and fill the hole with bluetac

Haha you think like me, that was my first response when he called me asking what to do and complaining there wasn't a drain point in the tank. I was a bit flasher and suggested a tec screw though!

Originally Posted by No.3

Haha you think like me, that was my first response when he called me asking what to do and complaining there wasn't a drain point in the tank. I was a bit flasher and suggested a tec screw though!

Or go one step further and fit a drain plug while you are there.

Originally Posted by timattalon

Or go one step further and fit a drain plug while you are there.

Geez, flash ow... How many times do you think he's going to put the wrong fuel in, must be mates with him as well!

I know the problem is solved now but wondered if the new diesels don't have the manual pump to prime the fuel lines after running out of fuel. I remember running out of diesel once and fucking around until I figured out how to prime the lines.

Originally Posted by timattalon

Or go one step further and fit a drain plug while you are there.

Fun welding project

Originally Posted by No good names left

I know the problem is solved now but wondered if the new diesels don't have the manual pump to prime the fuel lines after running out of fuel. I remember running out of diesel once and fucking around until I figured out how to prime the lines.

Most of the new ones have an electric lift pump/sender/return/crud screen thing in the tank, which fires up as soon as you hit the key. In theory, the system is free from air leaks so once it's primed with diesel it never needs redoing - any air that gets in is returned to the tank. In practice, and as per normal if you get any air into the high pressure side and the common rail it tends to stop the thing running. You need to bleed the thing as you would always do in the past with diesels, but with the knowledge that the common rails can produce fearsome pressure which goes straight through people.

If you run out, you can often prime the system by turning the key to the on position and then off two or three times. I've had it with mine that after a service they didn't clear all the air out of the thing at a filter change and it started running on 3 or so cylinders. When I got to somewhere I could turn the thing off, I gave it a few minutes and restarted it and it ran fine.

Originally Posted by No.3

Yeah, the question came up as "How?" as these things have the anti-siphon filler spout, and I wasn't there to look at it and work out the best place to start draining the thing... Asked the question and apparently the best place to do it is at the inlet/suction pipe to the fuel filter - hose tail a little pump on and drain the tank out then refill and drag some fresh fuel up before reconnecting the hose to the filter inlet. Apparently these are a self priming setup, so just start it and it should push any air back to the tank via the return. Bit rough but there you go...

Oh yeah I see. For tow-ins with a misfuel, I've got a little facet pump rigged up to an m12 battery via an aliexpress sleeve, suck via the filter inlet hose as you say. Also use it for emptying petrol tanks when dead pump happen. I pinch the adapters out of our fuel pressure gauge set for the rangers and things with push fittings. Some have a lift pump, some don't.

The new common rail diesels with DPF are more of an issue when having petrol go thru the system.
First off petrol isn't a lubricant like diesel and the tolerances in the fuel system can't handle the petrol washing the surfaces. Potential for disaster there.
Then secondly, the emissions systems when petrol is burnt will overheat and melt also causing catastrophic damage.

In the even of petrol being accidentally put into the tank, depending on how much, I would either suck out what you could from the tank disconnect the fuel line to the filter and suck it thru using a small electric pump or pressurize tank with air and push it through.
Put 1L of 2stroke oil in tank then fill tank with diesel.

If you have only put a few liters in, again put 1L of 2stroke oil in the fill to max with diesel.

As a hint, if the vehicle still has NVW whatever you do don't tell them you've done all that. Run a couple tanks of diesel thru then if its a problem take it in to them.
If you let them know you've put the incorrect fuel in, they will void your warranty entirely.
So the least they know the better.

If anyone has put AdBlue into the fuel system however that is another totally different thing. That crap is corrosive as hell.
Whatever you do DO NOT ever run it with AdBlue in it. Get the fuel system drained and the tank removed and cleaned out!

Originally Posted by cambo

The new common rail diesels with DPF are more of an issue when having petrol go thru the system.
First off petrol isn't a lubricant like diesel and the tolerances in the fuel system can't handle the petrol washing the surfaces. Potential for disaster there.
Then secondly, the emissions systems when petrol is burnt will overheat and melt also causing catastrophic damage.

In the even of petrol being accidentally put into the tank, depending on how much, I would either suck out what you could from the tank disconnect the fuel line to the filter and suck it thru using a small electric pump or pressurize tank with air and push it through.
Put 1L of 2stroke oil in tank then fill tank with diesel.

If you have only put a few liters in, again put 1L of 2stroke oil in the fill to max with diesel.

As a hint, if the vehicle still has NVW whatever you do don't tell them you've done all that. Run a couple tanks of diesel thru then if its a problem take it in to them.
If you let them know you've put the incorrect fuel in, they will void your warranty entirely.
So the least they know the better.

If anyone has put AdBlue into the fuel system however that is another totally different thing. That crap is corrosive as hell.
Whatever you do DO NOT ever run it with AdBlue in it. Get the fuel system drained and the tank removed and cleaned out!

Thx, that lines up with what I found on the research. He apparently put "less than 10L in, based on less than 1/2 a 20L fuel can - but say 10L to be safe". How much petrol on a full tank of diesel in these things would be not likely to cause damage? Based on a 70L tank, and the internet recommendation of less than 5% as a safe max that lines up as 3.5L of petrol - would that be your thoughts @cambo?

Originally Posted by No.3

Thx, that lines up with what I found on the research. He apparently put "less than 10L in, based on less than 1/2 a 20L fuel can - but say 10L to be safe". How much petrol on a full tank of diesel in these things would be not likely to cause damage? Based on a 70L tank, and the internet recommendation of less than 5% as a safe max that lines up as 3.5L of petrol - would that be your thoughts @cambo?

Technically they won't like much at all. 5% is prob about right. I wouldn't want to try and find out personally.