Water gets into a fuel tank through rain and flooding around the filler, condensation inside a part empty tank, ethanol blends absorbing moisture until it separates out, and water that was already sitting in a service station’s underground storage tank before it reached your car. Water is the contamination nobody expects, and at Wrong Fuel…
To avoid putting the wrong fuel in your car, know which fuel your vehicle takes before you arrive, read the words on the pump rather than trusting the colour, and check the nozzle against your filler cap label before you squeeze the trigger. Distraction causes most misfuels. At Wrong Fuel Help we get called out…
AdBlue misfuelling happens more in trucks and fleets than anywhere else, because drivers refill AdBlue routinely and the two fillers sit side by side. If diesel and AdBlue get crossed in either direction, park the vehicle, keep the engine off and have the affected tank drained before it runs. Ask any transport operator where AdBlue…
AdBlue is used by most new diesel cars, utes and 4WDs sold in Australia, and by no petrol vehicles at all. The quickest ways to check are a blue filler cap near the diesel filler, an AdBlue gauge or warning in the dash menu, and your owner’s manual. Here is a question we get asked…
If you have put diesel in the AdBlue tank, do not start the engine. Diesel destroys the AdBlue dosing pump, lines and injector. It can also ruin the SCR catalyst which is one of the most expensive parts on the vehicle. The tank must be emptied and flushed completely before the system is restarted. There’s…
If you put the wrong fuel in a tractor or farm machine, shut it down and do not restart it. Modern farm machinery runs the same high pressure diesel systems as new utes, so the fix is the same: a full drain and flush, done where the machine stands. Farm misfuels are different from servo…
Old mechanical diesels tolerated small amounts of petrol because their injection systems ran at low pressure with loose tolerances. Modern common rail diesels do not, because petrol strips the lubrication their high pressure pumps and injectors depend on. Any misfuel in a modern diesel needs a full drain before startup. There is a conversation I…
If you have put the wrong fuel in one tank of a dual tank 4WD, leave the engine off and do not run the transfer pump or switch tanks. Keeping the contamination isolated in one tank is what makes the fix quick, and a mobile drain can empty that tank wherever you are. Dual tanks…
If you put the wrong fuel in your boat, do not start the motor, and do not try to siphon it out at the ramp. Petrol boat and diesel boat engines both need the tank drained properly before they run again, and a mobile fuel drain comes to the ramp, marina or driveway. Here is…
In a vehicle tank, fuel begins to go bad after three months or so. The lighter compounds evaporate. E10 blends can absorb moisture and separate. Oxidation forms gums and varnish. Diesel has a longer life but it has its own problems. A car that has been standing long enough may need its fuel drained, not…
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