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Diesel Cetane booster- worth it?


Uncle Jimmy

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Petrol does the opposite, it's only of any use in a diesel when it prevents the fuel gelling when temps drop below -15C, or if you're using soya oil

which gels just above 0C.

 

There shouldn't be any need for a cetane improver if you're using decent quality diesel, but you'd still notice some extra go. The Americans have much lower cetane diesel than us, it makes a lot of sense there especially in European high-efficiency engines.

 

A few veggers and biodiesel makers use it, especially if the oil/feedstock is poor.

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I’ve used additive that has cetane boosting properties, as well as lubricity and anti-fungal agents (to kill diesel bug). I have seen improvements in economy and reduced smoke levels on vehicles without DPF.

 

However, I have seen similar results with premium diesel, such as BP Ultimate or Shell V-Power. The only thing with premium diesels is that you cannot change the dosing ratio if a system clean is required, rather than just maintenance dosage.

 

I tend to use them at service intervals now.

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