What is a good cetane rating?
The scale for measuring cetane ranges from 0 to 100, and the higher the number, the better. Modern highway diesel engines tend to require fuel with a cetane number ranging from 45 to 55. Typically, regular no. 2 diesel has a cetane number of 40 to 42, while Cenex® Premium Diesel has a cetane number of 47 to 52.
What is the minimum cetane rating for diesel fuel?
40Recommendations for Cetane Rating While 40 is the minimum rating for diesel fuel sold in the United States, 45 is the de-facto floor for the majority of diesel engines to run well. And some diesel engines prefer a rating closer to 50.
How much is too much cetane?
If you increase the cetane number too high (55 and beyond), it can deteriorate the fuel and actually cause a reduction in overall engine performance.
Is low cetane number good?
Using a lower octane fuel than required can cause the engine to run poorly and can damage the engine and emissions control system over time. It may also void your warranty. In older vehicles, the engine can make an audible "knocking" or "pinging" sound.
Is cetane good for diesel?
Cetane numbers are used to indicate the combustion speed of diesel fuel. Diesel fuels with higher cetane ratings have shorter ignition delays, providing more complete combustion and allowing engines to operate more effectively.
How do you increase cetane?
Innospec can also provide a nitrogen-free Cetane Number Improver, CI-0808. This additive can be used to increase the Cetane Number of diesel fuels without increasing the fuel nitrogen content. CI-0808 is a blend of Di-tert-butyl peroxide in solvent and is typically used at 0.05% to 0.50% volume.
What is the best cetane booster?
Diesel Extreme is the best additive in the game. This one adds seven points to diesel's cetane score (which again improves the fuel's combustion performance), and it cleans and lubricates injectors and other critical fuel system components. Diesel Extreme also helps remove excess water and contaminants from fuel.
How do I find my diesel cetane number?
In the ASTM D613 test, the cetane number of a diesel fuel is determined by comparing its ignition delay in the standard CFR test engine with those for blends of reference fuels of known cetane number.
Which brand of diesel fuel is best?
Chevron, Shell, Exxon/Mobil, Costco are just four that are certified Top Tier. Pretty much all automotive owner manuals will say to use Top Tier fuel if available to keep the engine and emissions system performing at peak level.
Can too high octane fuel damage an engine?
The higher octane gives premium gas greater resistance to early fuel ignition, which can result in potential damage, sometimes accompanied by audible engine knocking or pinging.
What fuel is recommended for my car?
For the vast majority of American drivers, regular unleaded gasoline is all they need to use. However, most gas pumps also have premium and/or mid-grade gasoline that cost a little bit more, and have a little bit higher octane rating.
What happens if you put 87 octane in a 93 octane car?
In most cases, the vehicle will run fine, but you may experience less power and a decrease in gas mileage. In more serious cases, you may hear engine knocking or valve chatter because the fuel isn't burning right. These things could damage your engine and you should take it to your mechanic.