Leaderboard

Hi Allan, I have had a look at the Jaguar Warranty Benefits leaflet, and under "Owner's Responsibilities" there is a paragraph stating that there will be no responsibility accepted by Jaguar -- etc ....... for the use of supplemental additives and flushing agents for fuel or engine oil [unless specified as part of a Jaguar service requirement]. The previous paragraph refers to the use of bio diesel or bio ethanol in concentrations that exceed 5%. This would exclude regenerated chip oil, or at the other extreme very powerful fuels. I don't think that an egg cup full of an additive would exceed 5% of 65 litres of top quality diesel. However, if you are unsure, I would write to a main dealer or indeed Jaguar for confirmation that a small amount of an DPF/EGR/Injector cleaner would invalidate the warranty. The Owner's handbook does say that you should not put any additives at all into the fuel or engine oil. Most peculiar! Regards, Peter.