Cetane, Lubricity & Stability

Our passion at CountryMark is your success. We know from both field experience and laboratory testing, CountryMark’s on-road and off-road premium diesel fuels with superior cetane, lubricity, stability and deposit control detergency deliver the power and performance needed to optimize the performance of your diesel engine.
 
Our fuels are also backed by the industry’s best-trained support system. Our team stands ready to answer your questions about optimizing your diesel performance and maximizing your fuel investment.
 
Fuel injector deposits: technical review
 
 
 
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A M E R I C A N    O I L
CountryMark is proud to refine only 100% American crude oil from the Illinois Basin. Click here to learn more about the jobs, economic impact and quality of American crude oil.
 
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