annoyingly it was at a servo nowhere near home around 60 ish kms away and i’ve never been there before so who knows
i’ve got a mates car for the moment so i reckon i’ll try and see if the metho works tomorrow and all fingers crossed,
Give the servo a call and tell them your car died w kms after filling up x litres at their bowser number y on z Jan 2023 due to fuel contamination (all this stuff critical stuff is on the receipt which is why you should always keep fuel receipts).
If you’re lucky, others will also have suffered contamination and reported it and the seller may even acknowledge the problem and accept liability (but probably not as they don’t like sharing such info). In any case there are claims processes you can follow (either through the petrol company or your insurance (I took the malicious damage route through my insurance with no excess charged since I identified the at fault party)).
If it’s water, almost certainly it will contain leaf and dirt matter and sooner or later your in tank fuel filter will clog up from that as metho can’t fix such things and you’d be back to an expensive tank drop fix… How quickly depends on how much crud…
So better to look into it fully and not just kick the can down the road hoping all will be ok. Dropping the tank and cleaning it will likely be upwards of $1K so best to have a fuel sample taken from near the bottom of the tank (using a thin tube down the filler nozzle) and assess the fuel condition and check DTC‘s for misfire as a first step… Get a mechanics report will help with any claim (be it from the fuel seller or your insurance). Such shouldn’t cost much (< 1hr labour really).
If it’s just a little clean water, metho may help but if it’s water with rotting leaf matter and such that’s got past the bowser filter (yes it happens and is likely), metho probably won’t help in the long term because all that crud will end up clogging the in tank filter and you’ll have problems down the line making any later claim impossible.
In one car I have, flipping the rear seat exposes a fuel pump access hatch so pulling out the fuel pump to look into the tank takes just 5 minutes. So it’s easy to check the fuel condition for water, rotting leaf matter and and stratification of the fuel. And just another 5 minutes to take the injectors out ready for cleaning makes it a relatively simple thing to fix. How do I know this, well after my second fuel contamination case I didn’t want to pay $900 for a mechanic to do similar and then me have to go the insurance claim route again (was just easier and quicker to DIY and pump out some of the old fuel and clean the injectors).…
But on the commodore, doing such isn't so easy… If I ever suffer fuel contamination in the commodore and the tank needs to come out, I’ll be having the mechanic installing a fuel pump access hatch under the rear seat.
So best to look into it fully and not hope. But if hope is your way, at least take a 5 ltr sample out of the bottom of the tank and put it into a new can before you throw in any metho or such into the vehicle tank (and doing that will clarify how much of a fuel contamination problem you have)… That way you have a sample to fall back on should you still have issues post metho fix…