Oil is Junk Wars' premium currency used to buy certain items from the auction house and packs in the shop.
It can be obtained in many ways:
- purchase with real money (or digital currency like, e.g., kreds, when playing on kongregate), all proceeds will go to Antic (the developers) to support the game's development!
- Win 10 battles a day for 10 free oil, and get lucky on the Junkpot (0-150 oil/day).
- Daily Beatings daily achievements, complete all 4 for 16 oil/day.
- Visit all 3 gas stations every day (they are not reset midnight server time but 24h after last visit) for 3 oil/day.
That's a total of 29+ free oil each day!