FS Gold Standard

FS takes you further. We have one million miles of proof.

We had the opportunity to dismantle and examine a Cat^® C15 powerhouse engine that used DIESELEX^® GOLD and SUPREX GOLD^® ESP for 10 years and one million miles.

See the results of the million-mile teardown yourself.

Setting the Standard in Total Diesel Engine Performance and Protection

• Restores Lost Horsepower
• Starts Engines Faster
• Reduces Moisture and Icing
• Outperforms Industry Standards
• Reduces Engine and Fuel System Wear
• Extends the Life of Stored Fuel
• Restores Lost Fuel Efficiency
• Prevents corrosion and plugged filters