Searched threads here & also read the pdf sheet on Biobor's website. Can't find if this stuff has an expiration date.
This is our 1st year winterizing a diesel. I can get Biobor JF from Amazon for a bit less than anywhere local.
Local stores stock the 8oz or 16oz bottles. Our Phaeton is 100gal tank, so the 8oz would do 6 years of winterizing. The 16oz would do 12 years.
Amazon also has a 4oz which would do at least 3 years of winterizing, but costs more than the 8oz bottle.
If there's an expiration date on this stuff, I'd bite the bullet & get the 4oz just so I don't waste it. But if not, I'll get the bigger bottle & know I'm good for over a decade.
Does anyone know? TIA