How old is old diesel?

[Joh.Ghurt]

Originally Posted by Rohan

And people running on 10 years, 17 years old diesel? I religiously add fuel stabilizer every year just to cover the idle winter months. Have I been wasting my money on that?

It's like an insurance. Do you want to take the risk or is the money invested worth the peace of mind?

[Boatyarddog]

Originally Posted by Boatyarddog

Here you go.
https://www.goldeagle.com/tips-tools...-last-storage/

Just cause you think your Diesel runs fine on old fuel, id listen to real expert's opinions first.
Its what you do not understand that will f up your engine.
And, experience tells me that it'll happen at the worse possiable moment.
Treat your engine as through your life depends on it, because it well may.

https://www.goldeagle.com/tips-tools...age/:rolleyes:

[dreadpiratk]

We bought a boat that had been on the hard for 12 years. Engine started on the second crank and ran fine on the fuel in the tank. I stocked up on filters and motored away. Smoked a bit more then with clean fuel but otherwise no ill effects. That’s with a Yanmar YSM 12 which is about the simplest most bomb proof engine made though.