Upgrade: CO2 friendly

The Upgrade: CO2 Friendly is a Cart Assembler Upgrade added by Steve's Carts, that increases the fuel efficiency by 15%, which makes any burned fuel produce 1.15u instead of 1u.

Recipe
An Upgrade: CO2 Friendly is crafted with 2 Cleaning Fans, 2 Simple PCBs, 1 Piston, 1 Iron Bars and 1 Blank Upgrade.

Usage
The Upgrade: CO2 Friendly's passive bonuses will be applied when it's attached to the Cart Assembler (place it on one of its sides).