DeadEnd
Active Member
- Joined
- Oct 17, 2020
- Messages
- 106
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- 71
Looking for your best practices. My truck isn't my daily so it takes a good bit of time before I need to refill my DEF. Example, purchased truck end of January this year and just yesterday put a 2.5 gallon jug in it. Is it better to keep the tank on the fuller side (without overfilling) to reduce the amount of air and possible crystallization inside the tank or don't worry and just fill as needed when I reach 1/4 tank left?