Can you use too much Diesel 911?
William Smith
Updated on April 02, 2026
You can easily add too much of a high-quality diesel fuel additive. Overdosing can lead to a whole new list of fuel and engine issues from clogged filters to overall decreased engine performance and efficiency. If you’re losing lubricity, don’t over-treat.
How often should you use Power Service diesel Kleen?
Every time
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.
How do you add 911 to a diesel?
Add 80 ounces of Diesel 911 to 250 gallons of diesel fuel. For biodiesel blends, add 80 ounces to 125 gallons of diesel fuel. Diesel 911 is safe for use in all diesel engines.
How much diesel do I need for 30 gallons of 911?
TO RELIQUEFY GELLED FUEL: Depending on container size, add the following: 16 ounces (Part No. 8016-09) of Diesel 9•1•1 to each 20 gallons, 32 ounces (Part No. 8025-12) to each 30 gallons or 80 ounces (Part No. 8080-06) to each 100 gallons of fuel in the tanks.
How much is a gallon of diesel Kleen?
The minimum mix of PS Diesel Kleen is to use . 32 oz. per gallon. For your application for 25 gallons, you ou would mix in 8 oz.
How do you use diesel Kleen?
Add entire contents (16 ounces) to 40 gallons of diesel fuel. For maximum cetane boost and quicker fuel injector clean-ups, add entire contents (16 ounces) to 20 gallons of diesel fuel. Add entire contents (32 ounces) to 100 gallons of diesel fuel.
Does diesel Kleen have a shelf life?
Indefinitely in a sealed container. Once the seal has been broken, the best practice is to use the product within 12 to 18 months.
Does diesel Kleen go bad?
So how long does diesel fuel last? Well, without diesel fuel additives, diesel can go bad in as little as 30 days before this oxidization process becomes unwieldy, creating deposits that can damage fuel injectors, fuel lines, and other system components which will hurt fuel economy and performance.
Will diesel Kleen prevent gelling?
Diesel Kleen +Cetane Boost does not provide antigel protection – in cold temperatures, use Power Service Diesel Fuel Supplement +Cetane Boost (in the white bottle) to prevent fuel gelling. Add entire contents (12 ounces) to 40 gallons of diesel fuel.
How do you Ungel diesel?
In order to Liquefy Diesel Fuel:
- Remove fuel filters.
- Fill fuel filters with 50% CleanBoost® Diesel Rescue Emergency De-Gel™
- Fill the remaining 50% with diesel fuel.
- Re-install fuel filters.
- Start engine and allow to idle until warm.
How much diesel Kleen should I use?
Add one gallon to each 1,500 gallons of diesel fuel. For maximum cetane boost and quicker fuel injector clean-ups, add one gallon to each 750 gallons of diesel fuel.
Does Powerservice remove water?
Power Service recommends using a product called Clear Diesel Fuel & Tank Cleaner. It removes water, but it is not an emulsifier. Emulsifiers will pull excess free suspended water droplets into the fuel, which can be harmful to injectors.
What does diesel Kleen do for diesel engines?
It restores lost power and fuel economy and smooths rough-running engines. Diesel Kleen can be used year-round, but it is not a diesel fuel winterizer or antigel. When winter temperatures drop below + 30°F. use Diesel Fuel Supplement +Cetane Boost (in the white bottle) to provide maximum winter protection for your diesel engine.
What is power service diesel 911 used for?
Power Service Diesel 911 is effective in all diesel fuels, including Ultra Low Sulfur Diesel (ULSD) and biodiesel blends containing up to 20% biodiesel (B20). It can also be introduced early in the cold weather season to remove the build-up of water and condensation in the fuel system.
Can you use Cetane boost with diesel Kleen?
Diesel Kleen +Cetane Boost does not provide antigel protection – in cold temperatures, use Power Service Diesel Fuel Supplement +Cetane Boost (in the white bottle) to prevent fuel gelling. Add entire contents (16 ounces) to 40 gallons of diesel fuel.
How do you stop fuel from gelling in a diesel 911?
Diesel 911 does not prevent fuel gelling – use Diesel Fuel Supplement +Cetane Boost (in the white bottle) as a preventive measure to keep fuel from gelling. Diesel 911 and Diesel Fuel Supplement +Cetane Boost are compatible in diesel fuel and may be used at the same time.
