Hi all. I filled three brand New fuel cans In July 2015 with ps and diesel. My question is should I put this in my truck being 6 months old or do you think I should save it for my brush fire?

 

The fuel should be just fine. I did the same at the beginning of RV season. I have an anemic 26 gallon tank so I filled a spare 5 gallon can in the beginning of the season for RV trips to new locations where fuel stops were uncertain. Poured it in the truck at the end of November. No issue...

 

It will be fine as far as fuel potency. It may have lost a little pep but probably won't be noticeable.

However, you may not have any anti gel properties if you live in a coldet climate.

With that in mind I would either add some anti gel if you dump it all in your tank at once or only dump one can in per fill up to benefit from the fuel coming fresh from the pump.