Opti-Lube Summer+ Formula



Opti-Lube is the ultimate in performance diesel fuel additives, dedicated to protecting your equipment by providing exceptional lubrication in the fuel system (ranked first in an independent study, view it here). Summer+ Cetane is our best diesel fuel additive for warm weather and your wallet.

Improving Lubricity is just the beginning, this product also improves efficiency, cleans injectors and boosts cetane by 5 - 7 points.

“Why do I want higher cetane in my diesel fuel?”, you ask – By increasing the cetane number of your fuel you improve cold starts and reduce engine noise. By reducing the ignition delay cetane causes a more complete burn, this commonly results in increased MPG. Generally, diesel engines operate well with a CN from 40 to 55. As mentioned earlier, fuels with a higher cetane number have shorter ignition delays, providing more time for the fuel combustion process to be completed. Hence, higher speed diesel engines operate more effectively with higher CN fuels.

Summer+ Formula, Avaliable in Quarts,Gallons, & 5 Gallon Pails

*Plastic Pail Pump will dispense approximately 1oz per stroke

*Steel Hand Pump will dispense approximately 4oz per stroke.


Summer/Warm Climate Blend: 1 to 1500 (1 ounce per 10 gallons of fuel)

Minimum treatment rate: 1 to 3000 (1 ounce per 20 gallons of fuel)

1 quart treats 375 - 750 gallons of diesel fuel

1 gallon treats 1,500 - 3,000 gallons of diesel fuel

5 gallon pail treats 7,500 - 15,000 gallons of diesel fuel

55 gallon drum treats 82,500 - 165,000 gallons of diesel fuel

  • Boosts Cetane by 5 - 7 Points

  • Enhanced Lubricity for Reduced Fuel System Wear

  • Improved Fuel Economy

  • Increased Power

  • Reduced Deposits

  • Reduced Emissions

  • Prevents Rust & Corrosion

  • Cleans Injectors

  • Improved Storage Stability (More than doubles storage life of diesel fuel)

  • Improved Water Separation


Download Summer+ SDS (Safety Data Sheet)