Will it hurt my engine to use Diesel Fuel Supplement +Cetane Boost year-round, even though it contains an antigel for winter operability?
No, it will not hurt your engine to use Diesel Fuel Supplement +Cetane Boost (in the white bottle) year-round. However, for maximum performance we recommend using Diesel Kleen +Cetane Boost (in the silver bottle) when temperatures are above 30°F. (Use our seasonal tip to remember: white for winter and silver for summer.)