Wanna know something about petrol going off?

It goes “off” as in out of spec. Not unusable. Not even *bad*.

The trout is on the same tank I last filled it with in June 2025. It runs fine.

I had another Falcon that sat from 2001 to 2009. Ran fine.

Maybe less power, or lower mpg. Couldn’t tell.

A really finely tuned engine control computer might complain, might throw codes. It might be really noticeable on a high compression or high performance engine.

But the mad max wasteland will be fine.

@NanoRaptor Unlike diesel fuel, which cheerfully starts the entire process of evolution all over again if you leave it sitting for more than 20 minutes.

@rmi @NanoRaptor old diesel burns ok* - it's the stuff that's turned to sticky jelly goo in your injector pump that's annoying to clean out.

Just drain all the water it's sucked out of the air and possibly chuck in a bit of old engine oil to give it back some of its lubrication...

I've only ever tried this with 40+ year old engines though. Probably don't try that on a modern engine you care about? 😂

@lpbkdotnet @NanoRaptor My day job used to include the care and maintenance of backup generators for data centres, so I am very familiar with the horror show 😁