FAQs

Can Power Service diesel additives be added to the Diesel Exhaust Fluid (DEF) tank?

No, Power Service manufactures diesel fuel additives and they should only be added to the fuel. Power Service does not manufacture DEF. Do not add any Power Service diesel fuel additive to the diesel exhaust fluid tank.

What is the shelf-life of your products?

Indefinitely in a sealed container. Once the seal has been broken, the best practice is to use the product within 12 to 18 months.

Will product leak out of a partially used container?

Power Service diesel additives packaged in 16-ounce, 32-ounce, 80-ounce and 1-gallon containers are packaged as single-use containers with a tamper-evident seal. Once the seal has been broken, the container cannot be resealed and product will leak if the bottle is not kept upright. The best practice is to use the container sized for your fuel […]

When is the best time to add Power Service diesel additives to my fuel?

The best time to add Power Service diesel additives is while you are filling up with fuel to ensure the quickest mixture of the additive to the fuel. However, the recirculation of fuel back to the engine means proper mixture will occur regardless of the time the product is added.

What is the difference between Diesel Fuel Supplement +Cetane Boost and Diesel Kleen +Cetane Boost?

Diesel Fuel Supplement +Cetane Boost (in the white bottle) is a winterizer/antigel for use when temperatures drop below 30°F. for winter operability. Diesel Kleen +Cetane Boost (in the silver bottle) is an injector cleaner and performance improver for use when temperatures are above 30°F. Use our seasonal tip to help remember which product to use: […]

Can I use Diesel Fuel Supplement +Cetane Boost and Diesel Kleen +Cetane Boost at the same time?

Yes, we have many customers that do not want to lose the performance improvements provided by Diesel Kleen +Cetane Boost when the weather gets cold. The products are compatible and can be used together. Each product should be added to the fuel based on the instructions on the container. Treating with less product than stated […]

Difference between Diesel Fuel Supplement +Cetane Boost & Diesel 911

The Arctic Formula of Diesel Fuel Supplement +Cetane Boost prevents fuel gelling and protects against fuel-filter icing. The Winter Rescue Formula of Diesel 911 is used when gelling or icing has already occurred and the engine won’t start. Use Diesel 911 to get your engine running and then add Diesel Fuel Supplement +Cetane to prevent […]

Can I use Cetane Boost and Diesel 911 simultaneously?

Yes, Diesel Fuel Supplement +Cetane Boost and Diesel 911 are compatible and can be used together.

How often should I use Power Service diesel additives?

Our recommended Year-Round Maintenance Schedule is: Every time you fill up: If temperatures are above 30°F, add Diesel Kleen +Cetane Boost (silver bottle) for maximum performance. This Max HP Formula is loaded with cetane, detergent and lubricity improver to provide peak diesel performance. If temperatures are below 30°F, add Diesel Fuel Supplement +Cetane Boost (white […]

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.)